ASVAB (Armed Services Vocational Aptitude Battery) — Questions and Answers

Question 1: How much water could a container hold that measures 8cm by 12cm by 10cm?

480 mL
520 mL
750 mL
960 mL (Correct answer)

Correct answer: 960 mL

To find the volume of a rectangular container, multiply its length, width, and height: Volume = 8cm × 12cm × 10cm = 960 cm³. Since 1 cubic centimeter (cm³) is equivalent to 1 milliliter (mL), the container can hold 960 mL of water.

Question 2: The word ANTAGONIZE most nearly means:

Cooperate
Provoke hostility in; irritate (Correct answer)
Assist
Support

Correct answer: Provoke hostility in; irritate

Antagonize means to cause someone to become hostile or annoyed.

Question 3: What is the volume of a rectangular box that is 4 m × 3 m × 2 m?

18 m³
48 m³
26 m³
24 m³ (Correct answer)

Correct answer: 24 m³

Volume = length × width × height = 4 × 3 × 2 = 24 m³.

Question 4: The word FERVENT most nearly means:

Cool
Having or showing great intensity of feeling (Correct answer)
Indifferent
Reluctant

Correct answer: Having or showing great intensity of feeling

Fervent means having or displaying a great deal of passion or intensity.

Question 5: The word ACUTE most nearly means:

Sharp or intense (Correct answer)
Slow
Invisible
Mild

Correct answer: Sharp or intense

Acute means sharp, intense, or requiring immediate attention.

Question 6: The word DISCORD most nearly means:

Agreement
Peace
Conflict or disagreement (Correct answer)
Harmony

Correct answer: Conflict or disagreement

Discord means lack of agreement or harmony; conflict.

Question 7: If 2x − 4 = 10, what is the value of x?

3
5
7 (Correct answer)
9

Correct answer: 7

Add 4 to both sides to get 2x = 14, then divide by 2 to get x = 7.

Question 8: What is the value of |−15| + |−7|?

−22
8
−8
22 (Correct answer)

Correct answer: 22

Absolute value makes both numbers positive: 15 + 7 = 22.

Question 9: A transformer steps voltage up from 120V to 480V. If the primary coil has 200 turns, how many turns does the secondary coil have?

800 turns (Correct answer)
400 turns
200 turns
50 turns

Correct answer: 800 turns

The transformer turns ratio formula is: V1/V2 = N1/N2. So N2 = N1 × (V2/V1) = 200 × (480/120) = 200 × 4 = 800 turns. Transformers work on electromagnetic induction and can only operate with AC because DC does not produce a changing magnetic field.

Question 10: What is the function of an inductor in an AC circuit?

Blocks DC and passes AC
Converts AC to DC
Opposes changes in current (Correct answer)
Amplifies voltage

Correct answer: Opposes changes in current

An inductor opposes changes in current due to its self-induced back-EMF (inductive reactance).

Question 11: Read the following passage and answer the question: 'The global average temperature has risen approximately 1.2°C above pre-industrial levels. Scientists warn that without significant reductions in greenhouse gas emissions, the planet could warm by 3-4°C by the end of the century, triggering more extreme weather events, rising sea levels, and widespread ecological disruption.' According to the passage, what could happen if greenhouse gas emissions are not significantly reduced?

Sea levels will stabilize
Greenhouse gases will naturally decrease
The planet could warm by 3-4°C by end of century (Correct answer)
Temperatures will remain at current levels

Correct answer: The planet could warm by 3-4°C by end of century

The passage directly states that without significant reductions in greenhouse gas emissions, the planet could warm by 3-4°C by the end of the century.

Question 12: Which material is the best conductor of heat?

Glass
Rubber
Wood
Copper (Correct answer)

Correct answer: Copper

Copper has a very high thermal conductivity, making it the best heat conductor among these options.

Question 13: Which of the following is the basis for Pascal’s Law?

The amplification of force in a hydraulic system. (Correct answer)
The relationship between force and volume of a liquid.
The manner in which liquids conform to their container.
The definition of pressure as pounds per square inch.

Correct answer: The amplification of force in a hydraulic system.

Pascal's Law states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere. This principle is the fundamental basis for how hydraulic systems work, allowing a small force applied over a small area to generate a much larger force over a larger area, thus amplifying force.

Question 14: Which simple machine is a ramp an example of?

Inclined plane (Correct answer)
Screw
Wheel and axle
Lever

Correct answer: Inclined plane

A ramp is an inclined plane, one of the six simple machines. It reduces the force needed to raise an object by increasing the distance over which the force is applied.

Question 15: A hexagon is divided into 6 equilateral triangles. If you remove one triangle and reconnect the remaining 5, what is the minimum number of sides the new shape can have?

6
5 (Correct answer)
4
7

Correct answer: 5

Removing one triangle from a regular hexagon creates a 5-sided (pentagon) indentation, yielding a shape with 5 outer sides at minimum.

Question 16: In a connection item, point A is at the apex (top point) of an isosceles triangle. A line runs from A to point B, the midpoint of the long side of a rectangle. In one answer choice the triangle has been rotated 180° and the rectangle is unchanged. For that choice to be correct, where must the line start?

At the midpoint of the triangle's base, which now faces up
At the triangle's center, because rotation doesn't change the center
At either base corner of the triangle, since rotation moves the apex
At the apex, which now points downward (Correct answer)

Correct answer: At the apex, which now points downward

A connection point belongs to the piece. When the piece rotates, the point moves with it. After a 180° rotation the apex points down, and the line must still start exactly at that apex. If the line starts anywhere else on the triangle, the choice is wrong, even when the shapes themselves look right.

Question 17: According to Ohm's Law, what is the relationship between voltage, current, and resistance?

V = I × R (Correct answer)
V = I + R
V = I ÷ R
V = I - R

Correct answer: V = I × R

Ohm's Law states that voltage (V) equals current (I) multiplied by resistance (R). This fundamental relationship is the basis for most electrical circuit analysis.

Question 18: The word AUSTERE most nearly means:

Cheerful
Colorful
Lavish
Sternly simple; having no luxuries (Correct answer)

Correct answer: Sternly simple; having no luxuries

Austere means severe or strict; plain and without comfort.

Question 19: The ozone layer, which absorbs much of the Sun's ultraviolet radiation, is found mainly in which layer?

Exosphere
Stratosphere (Correct answer)
Mesosphere
Troposphere

Correct answer: Stratosphere

Most atmospheric ozone is concentrated in the stratosphere, about 10 to 30 miles up.

Question 20: In a series circuit with three resistors of 10Ω, 20Ω, and 30Ω, what is the total resistance?

60Ω (Correct answer)
20Ω
30Ω
5.45Ω

Correct answer: 60Ω

In a series circuit, total resistance is the sum of all individual resistances: R_total = 10 + 20 + 30 = 60Ω.

Question 21: In which phase of cell division do chromosomes align along the cell's equator?

Anaphase
Prophase
Telophase
Metaphase (Correct answer)

Correct answer: Metaphase

During metaphase, chromosomes align along the metaphase plate (cell equator) before being pulled apart.

Question 22: If b does not equal zero, and ab = b/4, what is the value of a?

1/4 (Correct answer)
1/3
1/8
1/2

Correct answer: 1/4

To find the value of 'a', we need to isolate 'a' in the given equation `ab = b/4`. Since 'b' does not equal zero, we can divide both sides of the equation by 'b'. This simplifies the equation to `a = (b/4) / b`, which further reduces to `a = 1/4`.

Question 23: A storage room holds 480 boxes. If each shelf holds 24 boxes and there are 4 rows of shelves, how many shelves are in each row?

5 (Correct answer)
8
4
6

Correct answer: 5

480 ÷ 24 = 20 shelves total; 20 ÷ 4 rows = 5 shelves per row.

Question 24: What is the surface area of a cube with side length 4?

96 (Correct answer)
64
48
144

Correct answer: 96

Surface area = 6 × side² = 6 × 16 = 96.

Question 25: What is the purpose of a feeler gauge?

To gauge the depth of a drilled hole
To measure small gaps or clearances between parts (Correct answer)
To measure the diameter of drill bits
To check the sharpness of a cutting blade

Correct answer: To measure small gaps or clearances between parts

A feeler gauge consists of thin metal strips of precise thickness used to measure narrow gaps, such as spark plug gaps or valve clearances.

Question 26: What does 'RPM' stand for in the context of power tools?

Rotational Power Measurement
Revolutions Per Minute (Correct answer)
Resistance Per Motor
Rated Power Mode

Correct answer: Revolutions Per Minute

RPM stands for Revolutions Per Minute, indicating how fast a motor shaft or blade spins.

Question 27: Choose the word most similar in meaning to IMPARTIAL.

Strict
Biased
Kind
Neutral (Correct answer)

Correct answer: Neutral

Impartial means treating all sides equally without bias; neutral is the best synonym.

Question 28: In a compound pulley system with 4 rope segments supporting the load, what is the mechanical advantage?

2
4 (Correct answer)
1
8

Correct answer: 4

Mechanical advantage of a pulley system equals the number of rope segments supporting the load.

Question 29: What is the primary purpose of drilling a pilot hole before driving a screw into wood?

To increase the holding strength of the screw
To make the screw easier to remove later
To prevent the wood from splitting and guide the screw accurately (Correct answer)
To countersink the screw head automatically

Correct answer: To prevent the wood from splitting and guide the screw accurately

A pilot hole is drilled slightly smaller than the screw's diameter to reduce the wood-splitting force as the screw is driven in, while also keeping the screw properly aligned.

Question 30: A pulley system uses 4 supporting rope segments to lift a load. If the load weighs 200 pounds, how much effort force is required (ignoring friction)?

100 pounds
200 pounds
800 pounds
50 pounds (Correct answer)

Correct answer: 50 pounds

In a pulley system, the mechanical advantage equals the number of supporting rope segments. With 4 segments supporting the load, the effort required = 200 ÷ 4 = 50 pounds.

Question 31: Frequency is measured in which unit?

Amperes
Volts
Watts
Hertz (Correct answer)

Correct answer: Hertz

Frequency, the number of cycles per second, is measured in Hertz (Hz), named after Heinrich Hertz.

Question 32: A square is cut diagonally from the top-left to the bottom-right corner, creating two triangles. What shape is each resulting piece?

Obtuse triangle
Right triangle (Correct answer)
Isosceles right triangle with unequal legs
Equilateral triangle

Correct answer: Right triangle

A diagonal cut across a square always produces two right triangles, each with one 90° angle at a corner of the original square.

Question 33: Which of Newton's laws proves that: An object at rest will stay at rest unless an external force acts upon it. An object in motion won't change its velocity unless an external force acts upon it.

Newton's Second Law of Motion
Newton's Third Law of Motion
Newton's Law of Universal Gravitation
Newton's First Law of Motion (Correct answer)

Correct answer: Newton's First Law of Motion

Newton's First Law of Motion, also known as the Law of Inertia, states that an object at rest will remain at rest, and an object in motion will remain in motion with the same velocity, unless acted upon by an unbalanced external force. This law describes the inherent resistance of objects to changes in their state of motion.

Question 34: Read the following passage and answer the question: 'The International Space Station orbits Earth at approximately 408 kilometers (253 miles) above the surface, completing one orbit every 90 minutes at a speed of roughly 28,000 kilometers per hour. Astronauts aboard the ISS experience about 16 sunrises and sunsets each day. The station has been continuously inhabited since November 2000.' How many sunrises do astronauts aboard the ISS experience in one day?

24
1
8
16 (Correct answer)

Correct answer: 16

The passage directly states that 'astronauts aboard the ISS experience about 16 sunrises and sunsets each day.'

Question 35: The word MANIFEST most nearly means:

Complicated
Temporary
Hidden
Clear and obvious; or to display clearly (Correct answer)

Correct answer: Clear and obvious; or to display clearly

Manifest means clear and obvious, or to show or demonstrate clearly.

Question 36: What is the purpose of a vehicle's PCV (Positive Crankcase Ventilation) valve?

To regulate engine coolant flow
To vent blow-by gases from the crankcase back into the intake (Correct answer)
To adjust ignition timing
To control fuel pressure

Correct answer: To vent blow-by gases from the crankcase back into the intake

The PCV valve routes harmful blow-by gases from the crankcase back into the intake manifold to be burned rather than released into the atmosphere.

Question 37: A storage room is 18 feet long, 12 feet wide, and 9 feet high. What is the volume in cubic feet?

1,728
1,944 (Correct answer)
2,160
1,620

Correct answer: 1,944

Volume = 18 × 12 × 9 = 1,944 cubic feet.

Question 38: What is the purpose of a differential in a vehicle's drivetrain?

To allow drive wheels to rotate at different speeds when turning (Correct answer)
To convert engine torque to electrical power
To increase engine torque output
To engage and disengage the drivetrain from the engine

Correct answer: To allow drive wheels to rotate at different speeds when turning

The differential allows the outer wheel to rotate faster than the inner wheel during a turn, preventing tire scrub and allowing smooth cornering.

Question 39: Which figure best shows how the objects in the left box will touch if the letters for each object are matched?

C (Correct answer)
B
D
A

Correct answer: C

The task is to match the corresponding lettered parts of the two objects. The top piece has a square protrusion at 'A' and a triangular indentation at 'B', while the bottom piece has a square indentation at 'A' and a triangular protrusion at 'B'. Option C correctly shows the top piece shifted to align its 'A' protrusion with the bottom piece's 'A' indentation, and its 'B' indentation with the bottom piece's 'B' protrusion, creating a seamless fit.

Question 40: A flywheel is used in an engine primarily to:

Increase fuel efficiency
Increase compression ratio
Store rotational energy and smooth out power pulses (Correct answer)
Reduce engine temperature

Correct answer: Store rotational energy and smooth out power pulses

A flywheel's rotational inertia stores energy during power strokes and releases it during non-power strokes, smoothing engine output.

Question 41: The word RESILIENT most nearly means:

Aggressive
Stubborn
Fragile
Able to recover quickly (Correct answer)

Correct answer: Able to recover quickly

Resilient means able to withstand or recover quickly from difficult conditions.

Question 42: Read the passage: 'Military rations have evolved from hardtack and salted meat in the Civil War to today's Meals Ready to Eat (MREs). Modern MREs contain approximately 1,250 calories each and include a main course, side dish, dessert, and beverage. They are designed to withstand extreme temperatures and have a shelf life of up to five years. Despite improvements, many soldiers still report that MRE taste could be better.' What can you infer about the military's priorities in designing MREs?

Taste is the most important factor
Durability, nutrition, and shelf life are prioritized over taste (Correct answer)
MREs are designed to be gourmet meals
Cost is the only consideration

Correct answer: Durability, nutrition, and shelf life are prioritized over taste

The passage emphasizes the calorie content, temperature resistance, and shelf life of MREs while noting taste complaints. This suggests functionality is prioritized over flavor.

Question 43: The word MENACE most nearly means:

Helper
Threat (Correct answer)
Symbol
Companion

Correct answer: Threat

Menace means a person or thing that is likely to cause harm; a threat.

Question 44: What does 'perimeter' measure?

The diagonal length
The space inside a shape
The total distance around the outside of a shape (Correct answer)
The height of a shape

Correct answer: The total distance around the outside of a shape

Perimeter is the total length of all sides around the boundary of a shape.

Question 45: What is the function of a rectifier in a power supply?

Regulates output voltage
Filters noise from signals
Converts DC to AC
Converts AC to DC (Correct answer)

Correct answer: Converts AC to DC

A rectifier uses diodes to convert alternating current (AC) into direct current (DC).

Question 46: What is the value of 3² + 4²?

49
14
20
25 (Correct answer)

Correct answer: 25

3² = 9 and 4² = 16, so 9 + 16 = 25.

Question 47: If a lever has its fulcrum positioned 1 foot from a 100-pound load and 3 feet from the effort force, how much effort is required to lift the load?

300 pounds
33.3 pounds (Correct answer)
50 pounds
100 pounds

Correct answer: 33.3 pounds

Using the lever principle (Load × Load Distance = Effort × Effort Distance): 100 × 1 = Effort × 3, so Effort = 100/3 ≈ 33.3 pounds.

Question 48: If a cylinder has radius 3 and height 5, what is its volume? (Use π ≈ 3.14)

282.6
47.1
94.2
141.3 (Correct answer)

Correct answer: 141.3

V = πr²h = 3.14 × 9 × 5 = 141.3.

Question 49: BENEVOLENT most nearly means:

strict
hostile
nervous
well-meaning (Correct answer)

Correct answer: well-meaning

Benevolent means well-meaning and kindly disposed toward others.

Question 50: Five pieces are shown: a large square, two identical small right triangles, a semicircle, and a narrow rectangle. One answer choice has the outline you expect, but it contains one small right triangle and two narrow rectangles. Why is this choice wrong?

It is wrong only if the triangles are rotated differently than shown
It is not wrong; any pieces can be swapped if the total area matches
It is wrong because the exact number and type of each piece must match the pieces shown (Correct answer)
It is wrong because Assembling Objects answers never contain rectangles

Correct answer: It is wrong because the exact number and type of each piece must match the pieces shown

The correct answer must use exactly the pieces shown: the same count and the same type and size of each piece. Rotating pieces is allowed, but swapping one shape for another is not. Here a small triangle has been replaced by a second rectangle, so the choice is wrong even though the piece count (five) and the outline look right. Taking inventory of the pieces is one of the fastest ways to eliminate a choice.

Question 51: Muscles in the human body require what energy compound to function?

ATP (Correct answer)
Fat
RNA
NADH

Correct answer: ATP

Muscles in the human body, like all living cells, require Adenosine Triphosphate (ATP) as their primary energy currency. ATP is produced through cellular respiration and is directly used to power muscle contraction and other cellular processes.

Question 52: METICULOUS most nearly means:

careless
quiet
extremely careful and precise (Correct answer)
quick

Correct answer: extremely careful and precise

Meticulous means showing great attention to detail; very careful and precise.

Question 53: Calculate the area of a parallelogram with a base of 3 feet and a height of 1.2 feet.

3.6 square feet (Correct answer)
4.0 square feet
1.8 square feet
3.2 square feet

Correct answer: 3.6 square feet

The area of a parallelogram is calculated by multiplying its base by its height. Given a base of 3 feet and a height of 1.2 feet, the area is 3 feet * 1.2 feet. This calculation results in an area of 3.6 square feet.

Question 54: If a wedge is made longer relative to its height, how does the force increase?

The amount of lift is increased as the wedge is moved vertically.
The amount of lift is decreased as the wedge is moved vertically.
The amount of lift is decreased as the wedge is moved horizontally. (Correct answer)
The amount of lift is increased as the wedge is moved horizontally.

Correct answer: The amount of lift is decreased as the wedge is moved horizontally.

A wedge is a simple machine that converts a force applied to its blunt end into forces perpendicular to its inclined surfaces, used for splitting or lifting. If a wedge is made longer relative to its height, its angle becomes shallower, which increases its mechanical advantage. This means less input force is required to achieve a certain output force, but the trade-off is that for a given horizontal movement of the wedge, the amount of vertical lift or separation achieved will be decreased.

Question 55: What happens to pressure when the area over which a force is applied decreases?

Pressure stays the same
Pressure increases (Correct answer)
Pressure becomes zero
Pressure decreases

Correct answer: Pressure increases

Pressure = Force ÷ Area. When the area decreases while force remains constant, pressure increases. This is why a sharp knife cuts better than a dull one — the same force is applied over a smaller area.

Question 56: What tool is used to make indentations that serve as marks for drilling operations?

Cold chisel
Crosscut punch
Brass drift
Center punch (Correct answer)

Correct answer: Center punch

A center punch is a hand tool with a hardened, pointed tip used to create a small indentation or dimple in a workpiece. This dimple serves as a crucial starting point for a drill bit, preventing the bit from 'walking' or wandering off-center when beginning a drilling operation. This ensures accurate hole placement.

Question 57: What is the function of a rectifier in a power supply?

Filters noise from signals
Converts DC to AC
Regulates output voltage
Converts AC to DC (Correct answer)

Correct answer: Converts AC to DC

A rectifier uses diodes to convert alternating current (AC) into direct current (DC).

Question 58: Which type of joint is created when two boards are joined at their ends with interlocking rectangular notches?

Rabbet joint
Dovetail joint
Butt joint
Box (finger) joint (Correct answer)

Correct answer: Box (finger) joint

A box joint (also called a finger joint) uses interlocking rectangular notches cut at the ends of two boards to create a strong corner joint.

Question 59: In a connection problem, the dot on Shape A sits on the CURVED edge of a semicircle, and the dot on Shape B is at the CENTER of a circle. One answer choice shows the line ending at the semicircle's straight (flat) edge but otherwise matches exactly. Why is this the best choice to eliminate?

A line can never connect to a curved edge in a correct answer
The line is supposed to stop before reaching the circle's center
The line attaches to the wrong edge of the semicircle, so the connection point has changed (Correct answer)
The semicircle should never be rotated in a correct answer

Correct answer: The line attaches to the wrong edge of the semicircle, so the connection point has changed

A semicircle has two different kinds of edge: the curved arc and the flat diameter. The problem puts the dot on the arc, so a line ending on the flat edge connects to a different feature, and the drawing is wrong. Rotating the semicircle is fine, and lines can attach to curved edges.

Question 60: Which of the following best describes the role of the torque converter's stator?

Lock the pump and turbine together at highway speeds
Prevent the converter from overheating
Redirect fluid from the turbine back to the pump to multiply torque (Correct answer)
Connect the engine to the transmission input shaft directly

Correct answer: Redirect fluid from the turbine back to the pump to multiply torque

The stator sits between the pump and turbine and redirects returning fluid in a direction that assists the pump rotation, multiplying torque output at low vehicle speeds.

Question 61: Which material is considered a semiconductor?

Silicon (Correct answer)
Rubber
Silver
Copper

Correct answer: Silicon

Silicon is a classic semiconductor used in transistors, diodes, and integrated circuits.

Question 62: Although much about dolphin communication remains a mystery, scientists have discovered three distinct sounds that dolphins frequently make: chirps, clicks, and whistles. Scientists have learned that dolphins use clicks to create a sonar map, which allows them to navigate and hunt. But, apart from possibly transmitting location, the clicks do not appear to serve any communication purpose. Rather, research indicates that dolphins communicate with each other by whistling. This discovery has necessitated further investigation, as scientists are not yet sure whether the whistles comprise a complex system of linguistic communication or a simple set of sonic cues, like the ones used by other animal species. Based on the passage, the most reasonable inference is that

dolphins are more intelligent than other animal species
dolphins are not the only animals species that communicates vocally (Correct answer)
dolphins never use clicks for communication
dolphins frequently communicate their locations to each other

Correct answer: dolphins are not the only animals species that communicates vocally

The passage mentions that scientists are investigating whether dolphin whistles are a complex language or 'a simple set of sonic cues, like the ones used by other animal species.' The comparison to 'other animal species' using 'sonic cues' strongly implies that vocal communication, even if simple, is not unique to dolphins and is also employed by other animals.

Question 63: A supply truck can carry 2,400 pounds. If each crate weighs 150 pounds, how many crates can the truck carry?

16 (Correct answer)
18
14
15

Correct answer: 16

Number of crates = 2,400 ÷ 150 = 16 crates.

Question 64: Simplify the expression: 3x + 6.5x2 = ?

36.5x
9.5x2<\/sup>
16x
This expression cannot be simplified. (Correct answer)

Correct answer: This expression cannot be simplified.

To simplify an algebraic expression, you can only combine 'like terms'. Like terms have the same variable raised to the same power. In this expression, '3x' has 'x' to the power of 1, while '6.5x²' has 'x' to the power of 2. Since the powers of 'x' are different, these terms cannot be combined, and the expression remains as is.

Question 65: What is the term for the amount of matter in an object?

Mass (Correct answer)
Density
Weight
Volume

Correct answer: Mass

Mass is the measure of the amount of matter in an object and does not change with location or gravity.

Question 66: What does a vehicle's alternator do while the engine is running?

Converts AC current to DC to start the engine
Controls transmission shifting
Generates AC current converted to DC to charge the battery and power electronics (Correct answer)
Regulates fuel injection timing

Correct answer: Generates AC current converted to DC to charge the battery and power electronics

The alternator generates alternating current (AC) which is converted to direct current (DC) to recharge the battery and supply power to the vehicle's electrical systems.

Question 67: Mitosis is the process by which:

energy is liberated.
eukaryotic cells degrade.
ATP is produced.
somatic cells replicate. (Correct answer)

Correct answer: somatic cells replicate.

Mitosis is a fundamental process of cell division where a single parent cell divides into two identical daughter cells. This process is essential for growth, repair, and asexual reproduction in eukaryotic organisms, specifically for the replication of somatic (non-reproductive) cells. It ensures that each new cell receives a complete set of chromosomes.

Question 68: What is the unit of electrical resistance?

Ohm (Correct answer)
Farad
Ampere
Volt

Correct answer: Ohm

Electrical resistance is measured in ohms (Ω), named after Georg Simon Ohm. One ohm is the resistance that allows one ampere of current to flow when one volt is applied.

Question 69: What is the purpose of a bypass capacitor placed across a power supply pin on an integrated circuit?

To convert AC to DC
To filter out high-frequency noise on the supply line (Correct answer)
To slow down the circuit switching speed
To increase the supply voltage

Correct answer: To filter out high-frequency noise on the supply line

Bypass capacitors provide a low-impedance path to ground for high-frequency noise, keeping the supply voltage clean and stable.

Question 70: What do spark plugs do in a gasoline engine?

Ignite the compressed air-fuel mixture in each cylinder (Correct answer)
Measure fuel pressure
Seal the combustion chamber
Filter the air-fuel mixture

Correct answer: Ignite the compressed air-fuel mixture in each cylinder

Spark plugs produce an electrical spark that ignites the air-fuel mixture at the right moment.

Question 71: Line l passes through the point (−1, 2). Which of the following CANNOT be the equation of line l?

y = x + 1 (Correct answer)
y = 1 − x
x = −1
y = x + 3

Correct answer: y = x + 1

To determine if a line passes through a point, substitute the x and y coordinates of the point into the equation. For the point (-1, 2) and the equation y = x + 1, substituting gives 2 = (-1) + 1, which simplifies to 2 = 0. Since this statement is false, the line y = x + 1 cannot pass through the point (-1, 2).

Question 72: The word VOLATILE most nearly means:

Predictable
Stable
Liable to change rapidly and unpredictably (Correct answer)
Slow-moving

Correct answer: Liable to change rapidly and unpredictably

Volatile means likely to change suddenly; can also describe a substance that vaporizes easily.

Question 73: You are given one semicircle with a radius of 2 and two quarter-circles, each with a radius of 2. Which assembled figure is correct?

A full circle with a radius of 2 (Correct answer)
A semicircle with a radius of 4
A quarter-circle with a radius of 4
A circle with a radius of 3

Correct answer: A full circle with a radius of 2

A semicircle (half a circle) plus two quarter-circles of the same radius make one full circle with a radius of 2. Its total area is 4π. The quarter-circle with a radius of 4 is a trap: its area is also 4π, but its arc has a radius of 4. Arcs with a radius of 2 can't combine to form it, and the pieces would leave gaps. Matching area alone is not enough; the curvature has to match too.

Question 74: Choose the word most similar in meaning to COVERT.

Loud
Secret (Correct answer)
Obvious
Open

Correct answer: Secret

Covert means not openly acknowledged or displayed; secret is the best synonym.

Question 75: What is a semiconductor?

A material that always conducts electricity
A material with conductivity between a conductor and an insulator (Correct answer)
A type of wire
A material that never conducts electricity

Correct answer: A material with conductivity between a conductor and an insulator

A semiconductor is a material (like silicon or germanium) whose electrical conductivity falls between that of a conductor and an insulator. Its conductivity can be modified by adding impurities (doping).

Question 76: A technician notices a milky, frothy substance on the oil dipstick. What does this most likely indicate?

Coolant is mixing with the engine oil (Correct answer)
The oil is overdue for a change
The PCV valve is stuck open
The oil filter is clogged

Correct answer: Coolant is mixing with the engine oil

A milky or frothy appearance on the dipstick indicates coolant contamination of the engine oil, typically caused by a blown head gasket or cracked engine block.

Question 77: AUDACIOUS most nearly means:

timid
daring (Correct answer)
foolish
secretive

Correct answer: daring

Audacious means showing a willingness to take surprisingly bold risks.

Question 78: Choose the word most similar in meaning to VIVID.

Faded
Dull
Bright (Correct answer)
Silent

Correct answer: Bright

Vivid means producing powerful mental images; bright is the closest synonym.

Question 79: In a connection item, Shape 1 is a right triangle with point A at the vertex of its right angle. Shape 2 is a rectangle with point B at the middle of one long side. One answer choice has the right shapes at the right sizes, each rotated 90°, and the line runs from the middle of the triangle's hypotenuse to the middle of the rectangle's long side. How should you treat this choice?

Accept it, because rotating the shapes lets the attachment point move along the edge
Reject it, because point A must stay at the right-angle vertex whatever the rotation (Correct answer)
Reject it, because shapes in connection items can never be rotated
Accept it, because only point B's location is checked when the shapes are rotated

Correct answer: Reject it, because point A must stay at the right-angle vertex whatever the rotation

You may rotate shapes in connection items, but each labeled point must stay in the same place relative to its own shape. A was at the right-angle vertex, so the line must leave from that vertex. A line from the middle of the hypotenuse changes where A is on the shape, so the choice is wrong even though the shapes and the rotation are fine.

Question 80: A circuit has a 10Ω resistor and a 10Ω inductive reactance connected in series. What is the impedance?

5Ω
100Ω
20Ω
14.14Ω (Correct answer)

Correct answer: 14.14Ω

Impedance Z = √(R² + XL²) = √(100 + 100) = √200 ≈ 14.14Ω.

Question 81: What is the mechanical advantage of a screw with a pitch of 0.25 inches and a circumference of 3 inches?

8
12 (Correct answer)
4
6

Correct answer: 12

Mechanical advantage of a screw = circumference ÷ pitch = 3 ÷ 0.25 = 12.

Question 82: Read the passage and answer the question. "Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow, and then transported and deposited in other locations. While erosion is a natural geological process, human activities such as deforestation and construction have greatly accelerated its rate in many areas." According to the passage, which of the following BEST describes erosion?

The chemical breakdown of minerals in soil
A human-caused process that destroys farmland
The formation of new rock layers over time
A natural process of soil and rock removal and redeposition (Correct answer)

Correct answer: A natural process of soil and rock removal and redeposition

The passage defines erosion as a natural process where soil and rock are removed and deposited elsewhere.

Question 83: What does a diode's 'forward voltage drop' refer to?

The maximum reverse voltage before breakdown
The voltage drop across the internal resistance
The minimum voltage required for the diode to conduct in the forward direction (Correct answer)
The voltage needed to reverse-bias the diode

Correct answer: The minimum voltage required for the diode to conduct in the forward direction

Forward voltage drop is the minimum voltage across a forward-biased diode needed for it to conduct; typically ~0.7V for silicon.

Question 84: What is the perimeter of a triangle with sides 5 cm, 7 cm, and 9 cm?

63 cm
16 cm
21 cm (Correct answer)
14 cm

Correct answer: 21 cm

Perimeter = 5 + 7 + 9 = 21 cm.

Question 85: A cam converts:

Electrical energy to mechanical energy
Fast rotation to slow rotation
Rotary motion to linear (reciprocating) motion (Correct answer)
Linear motion to rotary motion

Correct answer: Rotary motion to linear (reciprocating) motion

A cam is a rotating or sliding piece that converts rotary motion into linear reciprocating motion via a follower.

Question 86: A recruit deposits a $5,000 enlistment bonus in an account paying 4% interest compounded annually. How much interest has the account earned after 2 years?

$416
$204
$400
$408 (Correct answer)

Correct answer: $408

Year 1: $5,000 × 0.04 = $200, for a balance of $5,200. Year 2: $5,200 × 0.04 = $208, for a balance of $5,408. Total interest = $200 + $208 = $408. The $400 choice is simple interest, which ignores interest earned on interest.

Question 87: What is the primary role of decomposers in an ecosystem?

Produce oxygen through photosynthesis
Transfer energy from producers to consumers
Break down dead organic matter and recycle nutrients (Correct answer)
Convert nitrogen gas into ammonia

Correct answer: Break down dead organic matter and recycle nutrients

Decomposers like bacteria and fungi break down dead organisms, returning nutrients to the soil.

Question 88: One horsepower is equivalent to

724 watts
782 watts
746 watts (Correct answer)
768 watts

Correct answer: 746 watts

Horsepower (hp) is a traditional unit of power, commonly used to rate engines and motors, while watts (W) are the standard unit of power in the International System of Units (SI). The conversion factor between these two units is a widely accepted standard. Specifically, one horsepower is precisely equivalent to 746 watts.

Question 89: A medic has 30 liters of a 40% antiseptic solution. How many liters of pure water must be added to dilute it to a 25% solution?

15 liters
18 liters (Correct answer)
12 liters
24 liters

Correct answer: 18 liters

The amount of antiseptic doesn't change: 0.40 × 30 = 12 liters. After adding x liters of water, 12 = 0.25(30 + x), so 48 = 30 + x and x = 18 liters.

Question 90: The word PROCURE most nearly means:

Discard
Obtain or acquire (Correct answer)
Return
Examine

Correct answer: Obtain or acquire

Procure means to obtain something, especially with effort or care.

Question 91: The Mississippi River is key to New Orleans’ flavor and pizzazz. The seafood, the steamboat cruise, the swamp tours, and the history–it’s all there. And the jazz? There are those who would swear that the uncanny beat of the music comes from the intrepid rhythm of the Mississippi’s waters. According to the passage, some people believe that the atmosphere and reputation of New Orleans is derived primarily from

jazz music.
the history of its swamp.
its unique food.
the Mississippi River. (Correct answer)

Correct answer: the Mississippi River.

The passage explicitly states, 'The Mississippi River is key to New Orleans’ flavor and pizzazz.' It then elaborates on how various elements like seafood, steamboat cruises, swamp tours, history, and even the rhythm of jazz music are all connected to or derived from the river. This clearly indicates that, according to the passage, the Mississippi River is the primary source of New Orleans' atmosphere and reputation.

Question 92: A 120V RMS AC source is applied across a circuit. What is the approximate peak voltage?

85V
120V
170V (Correct answer)
240V

Correct answer: 170V

Peak voltage = RMS × √2 ≈ 120 × 1.414 ≈ 170V.

Question 93: Read the passage and answer the question. "Sleep is essential for good health, yet many Americans don't get enough. Adults need seven to nine hours per night, but surveys suggest that about one-third of U.S. adults sleep fewer than seven hours. Chronic sleep deprivation is linked to increased risk of obesity, heart disease, diabetes, and mental health issues." What does the passage suggest about sleep deprivation in the U.S.?

It can be fully corrected by sleeping ten hours on weekends
It affects only people with pre-existing health conditions
It primarily causes mental health issues rather than physical ones
It is a widespread problem with serious health consequences (Correct answer)

Correct answer: It is a widespread problem with serious health consequences

The passage notes that one-third of adults are sleep-deprived and links it to multiple serious health risks.

Question 94: The old mattress was infested<\/u> with bed bugs.

complete
overrun (Correct answer)
guarantee
diminish

Correct answer: overrun

To be "infested" means to be present in large numbers, typically referring to pests or undesirable organisms, causing problems or damage. "Overrun" means to spread over or occupy a place in large numbers, often to an undesirable extent. Both words convey the idea of being swarmed or overwhelmed by something unwanted, making "overrun" the best synonym.

Question 95: Read the passage: 'In aviation, a black box flight recorder is actually bright orange. The vivid color makes it easier to locate after a crash. The recorder is housed in a titanium shell designed to withstand extreme heat, pressure, and impact. It captures cockpit voice recordings and flight data for the final hours of a flight and continues transmitting an underwater locator beacon for up to 30 days after impact.' What can be inferred about why the beacon lasts 30 days?

The titanium shell takes approximately 30 days to corrode in salt water
Investigators need up to 30 days to complete their official accident reports
Flight regulations require a minimum 30-day waiting period before salvage operations begin
Crash sites in remote or underwater locations may take weeks to locate and reach (Correct answer)

Correct answer: Crash sites in remote or underwater locations may take weeks to locate and reach

A 30-day beacon duration implies investigators may need substantial time to find crash sites, particularly in remote or deep-water locations.

Question 96: Plants are autotrophs, meaning that they:

Are able to grow very quickly
Are able to produce their own food (Correct answer)
Are able to consume smaller organisms
Are able to automatically defend themselves

Correct answer: Are able to produce their own food

Autotrophs are organisms that can produce their own food, typically using light (photosynthesis) or chemical energy (chemosynthesis). Plants are the primary example of autotrophs, converting sunlight into energy-rich organic compounds.

Question 97: Read the passage and answer the question. "A chain of command is a hierarchical system of authority and responsibility in an organization. In the military, orders flow from higher-ranking officers down to lower-ranking enlisted personnel. Following the chain of command ensures coordination, accountability, and efficient communication, which are essential in both peacetime operations and combat situations." According to the passage, the chain of command ensures all of the following EXCEPT:

Efficient communication
Coordination within an organization
Equal rank distribution among all members (Correct answer)
Accountability among personnel

Correct answer: Equal rank distribution among all members

The passage lists coordination, accountability, and efficient communication as benefits of the chain of command—not equal rank distribution.

Question 98: If a resistor is color-coded yellow, violet, orange, gold, what is its resistance value?

4,700Ω ±5%
470Ω ±5%
47,000Ω ±5% (Correct answer)
4,700Ω ±10%

Correct answer: 47,000Ω ±5%

Yellow=4, Violet=7, Orange=×1000 multiplier → 47×1000 = 47,000Ω; Gold = ±5% tolerance.

Question 99: What property of a wave determines its pitch when heard as sound?

Speed
Amplitude
Frequency (Correct answer)
Wavelength

Correct answer: Frequency

Frequency determines pitch: higher frequency = higher pitch.

Question 100: Solve for x: 3x² - 12 = 0

x = ±4
x = ±3
x = ±6
x = ±2 (Correct answer)

Correct answer: x = ±2

3x² = 12 → x² = 4 → x = ±2.

Question 101: What is friction?

A force that causes objects to accelerate
The energy stored in a compressed spring
The tendency of objects to fall due to gravity
A force that opposes motion between surfaces in contact (Correct answer)

Correct answer: A force that opposes motion between surfaces in contact

Friction is a force that resists the relative motion of surfaces in contact. It can be helpful (allowing you to walk without slipping) or harmful (causing wear on machine parts).

Question 102: Which semiconductor device is commonly used as a voltage-controlled switch in digital logic circuits?

Schottky diode
MOSFET (Correct answer)
UJT
BJT in common-emitter mode

Correct answer: MOSFET

MOSFETs are the dominant switching device in digital logic because they are voltage-controlled and have very high input impedance.

Question 103: What layer of Earth's atmosphere contains the ozone layer that protects Earth from harmful ultraviolet radiation?

Thermosphere
Stratosphere (Correct answer)
Mesosphere
Troposphere

Correct answer: Stratosphere

The ozone layer is located in the stratosphere, approximately 15 to 35 kilometers above Earth's surface. Ozone (O3) molecules absorb most of the Sun's harmful UV-B and UV-C radiation. The troposphere is the lowest layer where weather occurs; the mesosphere is above the stratosphere.

Question 104: In electrical wiring, what does AWG stand for?

Alternating Wire Gauge
Applied Wiring Guide
Ampere Wire Grade
American Wire Gauge (Correct answer)

Correct answer: American Wire Gauge

AWG stands for American Wire Gauge, a standardized system for wire diameter sizes.

Question 105: Shape A has a dot at its leftmost point. Shape B has a dot at its topmost point. In the correctly assembled figure, the leftmost point of A is connected to the topmost point of B. Where does Shape B appear relative to Shape A?

Inside Shape A at its center
To the left of Shape A, with B's top touching A's left (Correct answer)
Above Shape A, with B's top touching A's top
Below Shape A, with B's top touching A's bottom

Correct answer: To the left of Shape A, with B's top touching A's left

For A's leftmost point to meet B's topmost point, B must be positioned to the left of A so B's top edge reaches A's left point.

Question 106: If (3.2 + 3.3 + 3.5)w = w, then what is the value of w?

0 (Correct answer)
1
10
1\/10

Correct answer: 0

First, sum the numbers inside the parentheses: 3.2 + 3.3 + 3.5 = 10. The equation then becomes 10w = w. To solve for w, subtract w from both sides: 10w - w = 0, which simplifies to 9w = 0. Dividing both sides by 9 yields w = 0.

Question 107: Which is the largest planet in our solar system?

Uranus
Jupiter (Correct answer)
Saturn
Neptune

Correct answer: Jupiter

Jupiter is the largest planet, with more mass than all the other planets combined.

Question 108: A 3D connector problem shows a cylinder with a dot at its top circular face and a cube with a dot on its right face. Which image correctly shows these objects connected?

A line from the center of the cylinder to the center of the cube
A line from the top face of the cylinder to the right face of the cube (Correct answer)
A line from the bottom of the cylinder to the left side of the cube
A line from the side of the cylinder to the top of the cube

Correct answer: A line from the top face of the cylinder to the right face of the cube

The dot is on the cylinder's top face and on the cube's right face. The connecting line must start at the cylinder's top face and end at the cube's right face.

Question 109: Which hand tool is specifically designed to measure both the inside and outside dimensions of objects such as pipes or cylinders?

Combination square
Vernier calipers (Correct answer)
Protractor
Spirit level

Correct answer: Vernier calipers

Vernier calipers have both outer jaws (for external measurements) and inner jaws (for internal measurements), making them the correct tool for precisely measuring diameters and depths of cylindrical objects.

Question 110: The circumference of a circle is 20 cm. What is the approximate radius of the circle?

8.5 cm
7.0 cm
1.5 cm
3.2 cm (Correct answer)

Correct answer: 3.2 cm

The formula for the circumference of a circle is C = 2πr, where 'r' is the radius. Given the circumference is 20 cm, we can set up the equation 20 = 2πr. To find 'r', divide 20 by 2π: r = 20 / (2 * 3.14) = 20 / 6.28 ≈ 3.18 cm. The closest approximate radius is 3.2 cm.

Question 111: While some playwrights are known for writing essays defending their own work or criticizing the work of competing writers, Arthur Miller’s essays are simply about theater. While we may discover politics and favoritism when we comb through Miller’s essays looking for such things, in doing so, we may risk missing the point of the works—Miller only wants for us to benefit from his years of experience. Even his earliest essays read as virtual how-to manuals for new playwrights and directors. These works ring with clarity and forthrightness, and are filled with thoughtful and often provocative opinions. These essays teach us what the theater is, what it might be, and how to make it so. The author suggests that Miller's essays differ from other playwrights' essays in that

Miller’s essays are not self-serving. (Correct answer)
Miller’s essays have had more influence.
Miller’s essays are more recent than other playwrights’.
Miller wrote essays about European theater.

Correct answer: Miller’s essays are not self-serving.

The passage contrasts Arthur Miller's essays with those of other playwrights, noting that others write to 'defend their own work or criticizing the work of competing writers.' In contrast, Miller's essays are described as 'simply about theater' and intended for readers to 'benefit from his years of experience.' This distinction implies that Miller's essays are not written for personal gain or defense, but rather for the broader good of the theater, making them not self-serving.

Question 112: A hydraulic jack uses a small piston with area 2 sq in and a large piston with area 20 sq in. If you apply 50 lbs to the small piston, what force does the large piston exert?

50 lbs
250 lbs
500 lbs (Correct answer)
1000 lbs

Correct answer: 500 lbs

Pascal's law: force scales with area ratio, so 50 × (20/2) = 500 lbs.

Question 113: Which type of electromagnetic radiation has the shortest wavelength?

Visible light
Radio waves
Gamma rays (Correct answer)
Infrared

Correct answer: Gamma rays

Gamma rays have the shortest wavelengths and highest frequencies in the electromagnetic spectrum.

Question 114: Which mineral has a hardness of 1, the softest on the Mohs scale?

Calcite
Gypsum
Talc (Correct answer)
Quartz

Correct answer: Talc

Talc is the reference mineral for hardness 1 on the Mohs scale.

Question 115: Which of these saws would be best for cutting through an iron bar?

Hacksaw (Correct answer)
Miter saw
Rip saw
Coping saw

Correct answer: Hacksaw

A hacksaw is specifically designed for cutting through metal, including tough materials like iron bars. It features a fine-toothed blade made of hardened steel, which is capable of effectively abrading and cutting through metallic materials. The other saws listed are primarily intended for cutting wood or for intricate, non-metal work.

Question 116: Read the passage and answer the question. "The U.S. Marine Corps traces its origins to the Continental Marines, formed on November 10, 1775, to support naval operations during the American Revolutionary War. Marines historically served as shipboard security and sharpshooters. Today, the Marine Corps is a versatile branch capable of rapid deployment in a variety of combat environments." The primary original purpose of Marines was to:

Fly combat aircraft from aircraft carriers
Lead ground invasions of enemy territory
Provide security and sharpshooting support for naval operations (Correct answer)
Guard military installations on U.S. soil

Correct answer: Provide security and sharpshooting support for naval operations

The passage states Marines historically served as shipboard security and sharpshooters in support of naval operations.

Question 117: What is the surface area of a cube with side length 4 cm?

64 cm²
16 cm²
48 cm²
96 cm² (Correct answer)

Correct answer: 96 cm²

Surface area = 6 × s² = 6 × 16 = 96 cm².

Question 118: On the computer-adaptive ASVAB (CAT-ASVAB), how are Assembling Objects scores used?

They are used mainly by the Navy for certain job (rating) qualifications and do not count toward the AFQT (Correct answer)
They are one of the four subtests that make up the AFQT
They are used only by the Army to calculate the GT line score
They are unscored experimental items

Correct answer: They are used mainly by the Navy for certain job (rating) qualifications and do not count toward the AFQT

The AFQT is built from Word Knowledge, Paragraph Comprehension, Arithmetic Reasoning, and Mathematics Knowledge. Assembling Objects is not part of it. AO is a scored subtest that the Navy uses most, in certain rating and aviation-related composites. A weak AO score won't lower your AFQT, but it can limit some job options.

Question 119: The word FORTIFY most nearly means:

Strengthen (Correct answer)
Surrender
Retreat
Weaken

Correct answer: Strengthen

Fortify means to make stronger or more secure, especially for defense.

Question 120: When two capacitors are connected in series, the total capacitance is:

Less than the smallest capacitor (Correct answer)
Equal to the sum of both
Equal to the largest capacitor
Greater than either capacitor

Correct answer: Less than the smallest capacitor

Series capacitors combine like parallel resistors: 1/Ct = 1/C1 + 1/C2, yielding a smaller total.

Question 121: How many feet are in one yard?

12
2
3 (Correct answer)
4

Correct answer: 3

1 yard = 3 feet.

Question 122: Read the passage: 'In 1928, Alexander Fleming noticed that a mold called Penicillium had contaminated one of his petri dishes and killed the surrounding bacteria. Rather than discarding the ruined experiment, he investigated the mold's bacteria-killing properties. His curiosity led directly to the discovery of penicillin, which has saved an estimated 200 million lives.' What does Fleming's behavior reveal about the nature of scientific discovery?

Most important discoveries result from carefully planned experiments with predictable outcomes
Fleming deliberately contaminated his dishes to test the effects of mold on bacteria
Scientific progress depends primarily on expensive laboratory equipment and large research teams
Breakthroughs can come from investigating unexpected results rather than discarding them as failures (Correct answer)

Correct answer: Breakthroughs can come from investigating unexpected results rather than discarding them as failures

Fleming's decision to investigate rather than discard a contaminated dish shows that recognizing and pursuing anomalies can lead to major discoveries.

Question 123: What is 5/12 - 1/4?

4/8
1/3
2/12
1/6 (Correct answer)

Correct answer: 1/6

Common denominator 12: 5/12 - 3/12 = 2/12 = 1/6.

Question 124: What is 'valve float' in engine terminology?

Air bubbles in the hydraulic valve lifters
Valves failing to close properly at high RPM due to insufficient spring tension (Correct answer)
Oil leaking past valve seals
Excessive clearance between valve and seat

Correct answer: Valves failing to close properly at high RPM due to insufficient spring tension

Valve float occurs when engine valves fail to fully close at high RPM because the valve springs cannot overcome valve inertia fast enough, causing power loss and potential engine damage.

Question 125: If a man uses 200 N of force over a distance of 50 meters, how many joules of work are performed?

1,000
5,000
20,000
10,000 (Correct answer)

Correct answer: 10,000

Work is a measure of energy transferred when a force causes displacement. It is calculated by multiplying the force applied by the distance over which the force acts (Work = Force × Distance). In this scenario, a force of 200 Newtons (N) applied over a distance of 50 meters (m) results in 200 N × 50 m = 10,000 Joules (J) of work performed.

Question 126: A right triangle has its right angle at the bottom-left corner. Its vertical leg runs up the left side and its hypotenuse slopes from the top-left down to the bottom-right. If the piece is rotated 90° clockwise in the plane (not flipped), where is the right angle now?

Bottom-left (unchanged)
Top-right
Bottom-right
Top-left (Correct answer)

Correct answer: Top-left

In a 90° clockwise rotation, bottom-left moves to top-left, top-left moves to top-right, and so on. So the right angle ends up at the top-left. The vertical leg is now horizontal along the top, and the bottom leg now runs down the left side. Bottom-right is what a 90° counterclockwise rotation would give, and top-right is what a 180° rotation would give.

Question 127: What is the function of a diode in an AC circuit when used as a half-wave rectifier?

Converts voltage to current
Allows current to flow in only one direction (Correct answer)
Filters out high frequencies
Amplifies the AC signal

Correct answer: Allows current to flow in only one direction

A diode passes current in only one direction, so it blocks the negative half-cycle of AC, producing pulsating DC.

Question 128: What is the primary purpose of a differential gear in a vehicle?

To increase engine torque
To engage and disengage the engine from the drivetrain
To shift between gear ratios
To allow drive wheels to rotate at different speeds during turns (Correct answer)

Correct answer: To allow drive wheels to rotate at different speeds during turns

The differential allows the outer wheel to rotate faster than the inner wheel when the vehicle turns a corner.

Question 129: The word APPREHENSIVE most nearly means:

Confident
Anxious (Correct answer)
Angry
Excited

Correct answer: Anxious

Apprehensive means fearful or anxious about something that might happen.

Question 130: Read the passage and answer the question. "The speed of sound varies depending on the medium through which it travels. In dry air at 68°F (20°C), sound travels at approximately 767 miles per hour. Sound travels faster in liquids than in gases, and faster still in solids, because particles in denser materials are more tightly packed and can transmit vibrations more quickly." Based on the passage, in which medium does sound travel the FASTEST?

Dry air at room temperature
Liquid water
A vacuum
A solid material (Correct answer)

Correct answer: A solid material

The passage states sound travels faster in liquids than gases, and faster still in solids due to tightly packed particles.

Question 131: What is a vector quantity?

Magnitude
Gravity (Correct answer)
Volume
Mass

Correct answer: Gravity

A vector quantity is a physical quantity that possesses both magnitude (size) and direction. Gravity is a force, and forces are inherently vector quantities because they act in a specific direction (towards the center of mass) and have a measurable strength. In contrast, options like magnitude, volume, and mass are scalar quantities, which only have magnitude and no associated direction.

Question 132: A barracks can house 8 soldiers per room. If 156 soldiers need housing, how many rooms are needed?

19
18
21
20 (Correct answer)

Correct answer: 20

156 ÷ 8 = 19.5. Since you can't have half a room, you need 20 rooms to house all soldiers.

Question 133: Which type of filter passes low frequencies and blocks high frequencies?

Band-pass filter
Low-pass filter (Correct answer)
High-pass filter
Band-stop filter

Correct answer: Low-pass filter

A low-pass filter allows signals below its cutoff frequency to pass while attenuating signals above that frequency.

Question 134: Which semiconductor device can function as both a switch and an amplifier?

Transistor (Correct answer)
Resistor
Capacitor
Inductor

Correct answer: Transistor

A transistor can amplify signals or act as an electronic switch depending on how it is biased.

Question 135: What is a short circuit?

A circuit with too many resistors
A circuit that uses less voltage
A circuit that is shorter than normal
An unintended low-resistance path that allows excessive current flow (Correct answer)

Correct answer: An unintended low-resistance path that allows excessive current flow

A short circuit occurs when current takes an unintended low-resistance path, bypassing the normal load. This causes excessive current flow that can damage components, blow fuses, or cause fires.

Question 136: A puzzle piece has a straight top, a jagged right side, a curved bottom, and a flat left side. Which answer correctly identifies what adjacent pieces must look like?

The piece to its right has a straight left side; the piece below has a flat top
The piece to its right has a curved left side; the piece below has a jagged top
The piece to its right has a jagged left side; the piece below has a curved top (Correct answer)
The piece to its right has a jagged right side; the piece below has a curved bottom

Correct answer: The piece to its right has a jagged left side; the piece below has a curved top

Adjacent pieces must have complementary edges — the right neighbor needs a jagged left side to match, and the bottom neighbor needs a curved top to match.

Question 137: A store item is marked up 20% from its cost of $80. What is the selling price?

$100
$90
$96 (Correct answer)
$88

Correct answer: $96

20% of $80 = $16. $80 + $16 = $96.

Question 138: What does a vehicle's mass airflow (MAF) sensor measure?

Exhaust gas temperature
The amount of air entering the engine to help calculate fuel delivery (Correct answer)
Engine oil temperature
Intake manifold vacuum pressure

Correct answer: The amount of air entering the engine to help calculate fuel delivery

The MAF sensor measures the mass of air entering the engine, and the ECU uses this data to calculate the correct fuel injection quantity for the proper air-fuel ratio.

Question 139: The word INCESSANT most nearly means:

Continuous (Correct answer)
Brief
Quiet
Occasional

Correct answer: Continuous

Incessant means continuing without pause or interruption.

Question 140: In an Assembling Objects connector problem, you see a shape with a dot near its upper-left corner and another shape with a dot near its lower-right corner. A line must connect both dots. Which answer shows the correct assembly?

The line connects the upper-right corner of shape 1 to the lower-left corner of shape 2
The line connects the center of shape 1 to the center of shape 2
The line connects the lower-left corner of shape 1 to the upper-right corner of shape 2
The line connects the upper-left corner of shape 1 to the lower-right corner of shape 2 (Correct answer)

Correct answer: The line connects the upper-left corner of shape 1 to the lower-right corner of shape 2

In connector problems, the line must connect exactly the dot locations shown on each shape. The dot is at the upper-left of shape 1 and lower-right of shape 2, so the line connects these two specific points.

Question 141: The family was humiliated<\/u> by the comments in the newspaper.

proud
wicked
embarrrassed (Correct answer)
enraged

Correct answer: embarrrassed

To be 'humiliated' means to feel ashamed and foolish in front of others, often leading to a loss of dignity or self-respect. 'Embarrassed' perfectly captures this feeling of shame, discomfort, or awkwardness caused by public scrutiny or negative comments. Both words describe a state of distress arising from a perceived social misstep or public disgrace.

Question 142: Which type of energy does a compressed spring have?

Nuclear energy
Kinetic energy
Thermal energy
Potential energy (Correct answer)

Correct answer: Potential energy

A compressed spring stores elastic potential energy. When released, this potential energy converts to kinetic energy as the spring returns to its natural shape.

Question 143: A barracks room floor measures 12 feet by 15 feet. If carpet costs $3.50 per square foot, what is the total cost to carpet the room?

$378.00
$630.00 (Correct answer)
$472.50
$525.00

Correct answer: $630.00

Area = 12 × 15 = 180 square feet. Cost = 180 × $3.50 = $630.00.

Question 144: Which figure best shows how the objects in the left box will touch if the letters for each object are matched?

C (Correct answer)
B
D
A

Correct answer: C

The question asks to match the corresponding lettered parts of the two objects. The top piece has a circular protrusion at 'A' and a square indentation at 'B', while the bottom piece has a circular indentation at 'A' and a square protrusion at 'B'. Option C correctly shows the top piece shifted to align its 'A' protrusion with the bottom piece's 'A' indentation, and its 'B' indentation with the bottom piece's 'B' protrusion, ensuring a proper connection.

Question 145: A lever has a fulcrum in the center. If you push down on one end, what happens to the other end?

It also goes down
It goes up (Correct answer)
It moves sideways
It stays in place

Correct answer: It goes up

A lever pivots around its fulcrum. When one end is pushed down, the other end rises. This is the basic principle of a first-class lever, like a seesaw.

Question 146: The tool shown above serves primarily to

Bore a hole while containing the sawdust.
Drill holes of one size only (Correct answer)
Drill a hole and cut space for the screw head at the same time.
Cut wooden plugs that can be used to cover screw heads.

Correct answer: Drill holes of one size only

The tool shown (a standard drill bit) is designed to create holes of a specific, predetermined diameter. Each drill bit is manufactured to a precise size, and it will only bore a hole corresponding to that exact diameter. While specialized bits exist for other functions, a standard drill bit's primary and singular purpose is to drill holes of one specific size.

Question 147: Which fraction is greatest: 2/3, 3/5, 5/8?

5/8
2/3 (Correct answer)
They are equal
3/5

Correct answer: 2/3

Convert to decimals: 2/3 ≈ 0.667, 3/5 = 0.60, 5/8 = 0.625. So 2/3 is greatest.

Question 148: What is the unit of measurement for electrical current?

Ampere (Correct answer)
Ohm
Volt
Watt

Correct answer: Ampere

Electrical current is measured in amperes (amps). One ampere represents the flow of one coulomb of charge per second through a conductor.

Question 149: Read the following passage and answer the question: 'Coral reefs, often called the rainforests of the sea, support approximately 25% of all marine species despite covering less than 1% of the ocean floor. These ecosystems are under threat from warming ocean temperatures, ocean acidification, and pollution. When water temperatures rise even slightly above normal, corals expel the algae living in their tissues, causing coral bleaching.' What is the best title for this passage?

Coral Reefs: Vital but Threatened Ecosystems (Correct answer)
Ocean Pollution: Causes and Solutions
How Marine Algae Supports Ocean Life
Rainforests Compared to Ocean Ecosystems

Correct answer: Coral Reefs: Vital but Threatened Ecosystems

The passage focuses on coral reefs — describing their importance (supporting 25% of marine species) and the threats they face (warming, acidification, pollution, bleaching). The best title captures both the value and the vulnerability.

Question 150: What type of cooling system do most modern passenger vehicles use?

Liquid-cooled closed-loop system (Correct answer)
Oil-cooled direct system
Air-cooled open system
Phase-change evaporative system

Correct answer: Liquid-cooled closed-loop system

Most modern passenger vehicles use a liquid-cooled closed-loop system where coolant (antifreeze/water mixture) circulates continuously through the engine and radiator to remove heat.

Question 151: Choose the word most similar in meaning to DESOLATE.

Warm
Bleak (Correct answer)
Cheerful
Crowded

Correct answer: Bleak

Desolate means deserted and bleak; bleak is the closest synonym.

Question 152: Which type of capacitor is polarized and must be installed with correct polarity?

Mica capacitor
Ceramic disc capacitor
Film capacitor
Electrolytic capacitor (Correct answer)

Correct answer: Electrolytic capacitor

Electrolytic capacitors are polarized due to their oxide layer construction and will be damaged if installed backwards.

Question 153: What is the primary function of a zener diode in a circuit?

Convert AC to DC
Store electrical charge
Regulate voltage by maintaining a constant reverse breakdown voltage (Correct answer)
Amplify AC signals

Correct answer: Regulate voltage by maintaining a constant reverse breakdown voltage

A zener diode is designed to operate in reverse breakdown, holding a steady voltage and thus regulating circuit voltage.

Question 154: A soldering iron is primarily used to join which type of materials?

Steel structural beams
Plastic pipes
Electrical wires and circuit components (Correct answer)
Wooden joints

Correct answer: Electrical wires and circuit components

Soldering irons melt solder to create electrical and mechanical connections between metal components, especially in electronics.

Question 155: Which process moves water from the soil into a plant and eventually into the atmosphere?

Percolation
Transpiration (Correct answer)
Precipitation
Condensation

Correct answer: Transpiration

Transpiration is the evaporation of water from plant leaves, driving water uptake from the roots.

Question 156: Which tool is pictured above?

box-end wrench (Correct answer)
crescent wrench
open-end wrench
combination wrench

Correct answer: box-end wrench

A box-end wrench features a closed loop or "box" at one or both ends, designed to fit snugly around a nut or bolt head. This design provides a secure grip on all sides of the fastener, reducing the risk of slipping and rounding off the corners, especially when applying significant torque. This distinguishes it from open-end, combination, or crescent wrenches.

Question 157: What is the term for the minimum energy required to start a chemical reaction?

Bond energy
Kinetic energy
Activation energy (Correct answer)
Enthalpy

Correct answer: Activation energy

Activation energy is the minimum energy needed to initiate a chemical reaction.

Question 158: How many degrees are in a straight line (straight angle)?

270°
90°
360°
180° (Correct answer)

Correct answer: 180°

A straight angle measures exactly 180 degrees.

Question 159: Which electronic component allows current to flow in only one direction?

Inductor
Capacitor
Diode (Correct answer)
Resistor

Correct answer: Diode

A diode is a semiconductor device that acts like a one-way valve for electrical current — it conducts in the forward-biased direction and blocks current in the reverse-biased direction. Diodes are used in rectifiers to convert AC to DC, in signal detection, and in protection circuits.

Question 160: Which figure best shows how the objects in the left box will appear if they are fit together?

B
C
A
D (Correct answer)

Correct answer: D

The left box contains a rectangular piece with a semi-circular cutout and a separate semi-circular piece. To fit them together, the semi-circular piece must be inserted into the cutout. Option D correctly illustrates the two pieces combined to form a complete, solid rectangle.

Question 161: In the diagram above, what is the location of the fuel pressure regulator?

C (Correct answer)
A
B
D

Correct answer: C

A fuel pressure regulator is typically located in the fuel line, often near the fuel rail or return line, to maintain a consistent fuel pressure for the injectors. Without the accompanying diagram, it is assumed that 'C' correctly identifies the position of this component within the fuel system.

Question 162: What is 1/3 + 1/4?

2/7
7/12 (Correct answer)
5/12
1/6

Correct answer: 7/12

Common denominator is 12: 4/12 + 3/12 = 7/12.

Question 163: The word impart <\/u> most nearly means:

interrupt
transmit (Correct answer)
leave
steal

Correct answer: transmit

The word 'impart' means to communicate information or knowledge, or to give a quality to something. 'Transmit' shares this core meaning, referring to the act of passing something on, whether it's information, a feeling, or a physical item from one person or place to another. Both words denote the act of conveying or sharing.

Question 164: Which component in the charging system converts mechanical energy from the engine into electrical energy?

Starter motor
Ignition coil
Voltage regulator
Alternator (Correct answer)

Correct answer: Alternator

The alternator is driven by a belt from the crankshaft and generates AC electricity, which is then rectified to DC to charge the battery and power vehicle systems.

Question 165: Read the passage: 'Night vision goggles work in two different ways. Image intensification devices amplify existing light — starlight or moonlight — so that dim scenes appear brighter to the user. Thermal imaging devices, by contrast, detect heat emitted by objects and convert it into a visible image; they work even in complete darkness because they need no light at all.' Under which condition would thermal imaging have a clear advantage over image intensification?

In an overcast underground tunnel with no natural or artificial light source (Correct answer)
At dusk, when ambient light is fading but still partially available
When identifying text printed on paper documents found at a scene
On a brightly lit battlefield with artificial flares and searchlights

Correct answer: In an overcast underground tunnel with no natural or artificial light source

Thermal imaging requires no light and works in complete darkness, giving it a decisive advantage in environments with zero light, like an underground tunnel.

Question 166: The word EXERT most nearly means:

Relax
Withdraw
Apply effort or force (Correct answer)
Observe

Correct answer: Apply effort or force

Exert means to apply or bring to bear (effort, force, or influence).

Question 167: A number is multiplied by 4 and then 6 is added. The result is 30. What is the number?

4
7
6 (Correct answer)
9

Correct answer: 6

Let the number be n; 4n + 6 = 30 → 4n = 24 → n = 6.

Question 168: What is the primary function of an alternator in a vehicle?

Cool the engine
Convert mechanical energy to electrical energy (Correct answer)
Regulate fuel flow
Store electrical energy

Correct answer: Convert mechanical energy to electrical energy

The alternator converts mechanical energy from the engine into electrical energy to power the vehicle's electrical systems and recharge the battery while the engine is running.

Question 169: What is the process by which water vapor cools and changes into liquid water called?

Sublimation
Evaporation
Condensation (Correct answer)
Precipitation

Correct answer: Condensation

Condensation occurs when water vapor loses heat energy and changes into liquid water droplets.

Question 170: The word TENUOUS most nearly means:

Strong
Urgent
Thin and weak; not firmly established (Correct answer)
Obvious

Correct answer: Thin and weak; not firmly established

Tenuous means very thin, weak, or having little substance.

Question 171: A vehicle jack uses a screw with 8 threads per inch and a handle 12 inches long. What is the mechanical advantage of this jack?

150.8
603 (Correct answer)
96
75.4

Correct answer: 603

MA = (2π × handle length) / pitch. Pitch = 1/8 inch. MA = (2 × 3.14159 × 12) / (1/8) = 75.4 / 0.125 = 603.

Question 172: While only a teenager, Maria moved to New York City, in the hopes of finding a spot with a major ballet company. It was in New York City that Maria was advised not to take the name Maria Tallchief. Russian ballerinas were very much admired at the time, and many American dancers took Russian stage names. Maria, however, was very proud of her Native American heritage. She refused to change her name. According to the passage, why did Maria keep the name Tallchief?

Her parents pressured her to keep it
Her husband pressured her to keep it
She felt a Russian name would be too difficult to pronounce
She was proud of her heritage (Correct answer)

Correct answer: She was proud of her heritage

The passage explicitly states, 'Maria, however, was very proud of her Native American heritage. She refused to change her name.' This directly answers the question, indicating her pride in her heritage was the reason she kept the name Tallchief despite advice to change it.

Question 173: In a parallel circuit with three 6-ohm resistors, what is the total resistance?

2 ohms (Correct answer)
3 ohms
18 ohms
6 ohms

Correct answer: 2 ohms

In parallel, total resistance = 1/(1/6+1/6+1/6) = 6/3 = 2 ohms.

Question 174: What does the term 'frequency' refer to in AC circuits?

The phase difference between voltage and current
The number of complete cycles per second (Correct answer)
The time for one cycle
The peak voltage value

Correct answer: The number of complete cycles per second

Frequency is measured in hertz (Hz) and indicates how many complete cycles occur each second.

Question 175: How many liters of pure water must be added to 12 liters of a 30% acid solution to dilute it to a 20% acid solution?

4 liters
8 liters
3 liters
6 liters (Correct answer)

Correct answer: 6 liters

The amount of acid stays the same: 0.30 × 12 = 3.6 liters. For a 20% solution, 3.6 ÷ (12 + x) = 0.20, so 12 + x = 18 and x = 6 liters. Check: 3.6 ÷ 18 = 0.20 ✓.

Question 176: Read the passage and answer the question. "Desalination is the process of removing salt and other dissolved minerals from seawater to make it suitable for drinking or irrigation. While the technology has advanced significantly, desalination remains expensive and energy-intensive compared to treating freshwater sources. Countries with limited freshwater supplies, such as those in the Middle East, rely heavily on desalination plants." What limitation of desalination does the passage mention?

It is expensive and energy-intensive compared to treating freshwater (Correct answer)
It removes beneficial minerals that the body needs to function
It can only be used in tropical climates
It produces water with dangerously high mineral content

Correct answer: It is expensive and energy-intensive compared to treating freshwater

The passage states desalination remains expensive and energy-intensive compared to treating freshwater sources.

Question 177: What type of circuit has only one path for current to flow?

Series circuit (Correct answer)
Complex circuit
Parallel circuit
Bridge circuit

Correct answer: Series circuit

In a series circuit, all components share the same single current path.

Question 178: The word PERIL most nearly means:

Achievement
Comfort
Serious and immediate danger (Correct answer)
Safety

Correct answer: Serious and immediate danger

Peril means serious and immediate danger.

Question 179: What does a diode primarily do in a circuit?

Amplifies current
Measures voltage
Stores electrical energy
Allows current to flow in only one direction (Correct answer)

Correct answer: Allows current to flow in only one direction

A diode is a semiconductor device that permits current to flow in one direction only.

Question 180: What is the primary function of red blood cells (erythrocytes)?

To transport oxygen from the lungs to body tissues using hemoglobin (Correct answer)
To initiate blood clotting at sites of injury
To remove waste products from tissues
To fight infections and produce antibodies

Correct answer: To transport oxygen from the lungs to body tissues using hemoglobin

Red blood cells contain hemoglobin, an iron-containing protein that binds to oxygen in the lungs and releases it to cells throughout the body. RBCs lack a nucleus in their mature form, maximizing space for hemoglobin. White blood cells fight infection; platelets handle clotting.

Question 181: He took an oath<\/u> as an officer of the court.

award
promise (Correct answer)
vacation
class

Correct answer: promise

An "oath" is a solemn declaration or promise, often made under an appeal to a deity or as part of a formal ceremony. In the context of an officer of the court, it refers to a formal pledge to uphold duties truthfully. Therefore, "promise" is the most direct and accurate synonym for an oath.

Question 182: Which figure best shows how the objects in the left box will touch if the letters for each object are matched?

A
B
C (Correct answer)
D

Correct answer: C

Question 183: Water pressure at the bottom of a container depends on which of the following?

The weight of the container
The shape of the container
The depth of the water (Correct answer)
The volume of water in the container

Correct answer: The depth of the water

Fluid pressure depends only on the depth of the fluid and its density, not on the container's shape or total volume. Pressure increases with depth according to P = ρgh.

Question 184: A soldier earns $2,400 per month. If 15% is withheld for taxes, how much does the soldier take home each month?

$2,040 (Correct answer)
$1,980
$2,100
$1,920

Correct answer: $2,040

15% of $2,400 is $360, so $2,400 – $360 = $2,040 take-home pay.

Question 185: Which type of gear arrangement reverses the direction of rotation between the input and output shaft?

Two meshing spur gears (Correct answer)
Planetary gear
Worm gear
Bevel gear

Correct answer: Two meshing spur gears

Two meshing spur gears always rotate in opposite directions.

Question 186: What is the formula for calculating force?

F = ma (Correct answer)
F = m + a
F = a/m
F = m/a

Correct answer: F = ma

Newton's Second Law: F = ma (Force equals mass times acceleration).

Question 187: Which subatomic particle has a negative charge?

Neutron
Electron (Correct answer)
Proton
Nucleus

Correct answer: Electron

Electrons have a negative charge; protons are positive; neutrons are neutral.

Question 188: The word EXPEDITIOUS most nearly means:

Done with speed and efficiency (Correct answer)
Complicated
Slow and careful
Secretive

Correct answer: Done with speed and efficiency

Expeditious means done with speed and efficiency.

Question 189: Read the passage and answer the question. "Gravity is the force that attracts two objects with mass toward each other. The greater the mass of the objects and the closer they are together, the stronger the gravitational force between them. Earth's gravity keeps the Moon in orbit and prevents the atmosphere from escaping into space." According to the passage, gravitational force between two objects INCREASES when:

The objects have greater mass and are closer together (Correct answer)
The temperature of the objects rises
One of the objects loses mass
The objects move farther apart from each other

Correct answer: The objects have greater mass and are closer together

The passage states that greater mass and closer proximity both increase the gravitational force between objects.

Question 190: What is the main cause of ocean tides on Earth?

Underwater earthquakes
Earth's magnetic field
Wind blowing over the ocean surface
The gravitational pull of the Moon (Correct answer)

Correct answer: The gravitational pull of the Moon

The Moon's gravity pulls on Earth's oceans and creates two tidal bulges, with a smaller effect from the Sun.

Question 191: According to Newton's Third Law of Motion, when a swimmer pushes backward against the water, what happens?

The swimmer experiences a smaller reaction force due to water's density
The swimmer's force decreases the water's momentum
The water absorbs the force and nothing pushes back
The water pushes forward on the swimmer with an equal and opposite force (Correct answer)

Correct answer: The water pushes forward on the swimmer with an equal and opposite force

Newton's Third Law states that for every action there is an equal and opposite reaction. When the swimmer pushes the water backward (action), the water pushes the swimmer forward (reaction) with the same magnitude of force. This reaction force propels the swimmer through the water.

Question 192: In a parallel circuit with three branches, if one branch is open (broken), what happens to the other two branches?

The remaining two branches continue to operate normally (Correct answer)
The resistance of the remaining branches doubles
The voltage across the remaining branches drops to zero
All current stops flowing in the entire circuit

Correct answer: The remaining two branches continue to operate normally

In a parallel circuit, each branch has its own independent path back to the voltage source. If one branch opens (breaks), the other branches are unaffected — they still have complete paths and continue to operate at the same voltage. This is a key advantage of parallel wiring used in homes.

Question 193: What is the relationship between radius and diameter of a circle?

Radius = 2 × diameter
Diameter = radius + 2
Diameter = 2 × radius (Correct answer)
They are equal

Correct answer: Diameter = 2 × radius

The diameter is twice the radius (d = 2r).

Question 194: What tool would you use to measure the inner diameter of a cylinder bore?

Micrometer
Feeler gauge
Dial bore gauge (Correct answer)
Vernier caliper

Correct answer: Dial bore gauge

A dial bore gauge measures the internal diameter of a cylinder to check for wear or out-of-round conditions.

Question 195: If a circuit has 12V across a 4-ohm resistor, how much power is dissipated?

3 watts
36 watts (Correct answer)
8 watts
48 watts

Correct answer: 36 watts

P = V²/R = 12²/4 = 144/4 = 36 watts.

Question 196: Two convoys start 330 miles apart and drive toward each other on the same highway. One convoy travels 10 mph faster than the other, and they meet after 3 hours. What is the speed of the slower convoy?

55 mph
50 mph (Correct answer)
45 mph
60 mph

Correct answer: 50 mph

When two vehicles move toward each other, their speeds add: 330 ÷ 3 = 110 mph combined. So s + (s + 10) = 110, which gives 2s = 100 and s = 50 mph. The faster convoy goes 60 mph.

Question 197: Which instrument measures atmospheric pressure?

Psychrometer
Barometer (Correct answer)
Hygrometer
Anemometer

Correct answer: Barometer

A barometer measures air pressure, and a falling reading often signals stormy weather.

Question 198: You are shown 4 puzzle pieces that must fit together to form a square. Piece 1 has a convex tab on its right side. Which piece must have a corresponding concave notch to fit with Piece 1?

The piece above Piece 1
The piece below Piece 1
The piece to the left of Piece 1
The piece to the right of Piece 1 (Correct answer)

Correct answer: The piece to the right of Piece 1

A convex tab on the right side of Piece 1 must fit into a concave notch on the left side of the piece positioned to Piece 1's right. Matching tabs and notches must be mirror images of each other.

Question 199: A hydraulic press has a small piston with an area of 2 square inches and a large piston with an area of 20 square inches. If you apply 50 pounds to the small piston, what force does the large piston exert?

100 pounds
500 pounds (Correct answer)
50 pounds
1,000 pounds

Correct answer: 500 pounds

Pascal's Law states that pressure is transmitted equally throughout a fluid. Pressure = 50/2 = 25 PSI. Force on large piston = 25 × 20 = 500 pounds.

Question 200: Read the passage and answer the question. "Photosynthesis is the process by which green plants, algae, and some bacteria convert sunlight, water, and carbon dioxide into glucose and oxygen. This process is fundamental to nearly all life on Earth because it forms the base of most food chains and produces the oxygen that most organisms need to breathe." According to the passage, photosynthesis is important to life on Earth PRIMARILY because:

It allows animals to absorb nutrients directly from sunlight
It converts glucose back into sunlight energy
It creates the base of most food chains and produces breathable oxygen (Correct answer)
It removes harmful bacteria from the atmosphere

Correct answer: It creates the base of most food chains and produces breathable oxygen

The passage states photosynthesis forms the base of most food chains and produces oxygen, making it fundamental to nearly all life.

Question 201: Factor completely: x² - 9

(x + 3)(x + 3)
(x - 3)(x + 3) (Correct answer)
Cannot be factored
(x - 3)(x - 3)

Correct answer: (x - 3)(x + 3)

x² - 9 = x² - 3² = (x - 3)(x + 3).

Question 202: Given a circle with a radius of 0.85 meters, find the area of the circle.

3.4 meters squared
1.7 meters squared
2.67 meters squared
2.27 meters squared (Correct answer)

Correct answer: 2.27 meters squared

The formula for the area of a circle is A = πr², where 'r' is the radius. Given a radius of 0.85 meters, the area is A = π * (0.85)². Calculating this gives A ≈ 3.14159 * 0.7225 ≈ 2.2698. Rounded to two decimal places, the area is approximately 2.27 meters squared.

Question 203: What is the prime factorization of 36?

2³ × 3
2² × 3² (Correct answer)
2 × 3³
4 × 9

Correct answer: 2² × 3²

36 = 2 × 18 = 2 × 2 × 9 = 2 × 2 × 3 × 3 = 2² × 3².

Question 204: Read the passage and answer the question. "A peninsula is a piece of land that is surrounded by water on three sides but connected to a larger landmass on one side. The word comes from the Latin 'paeninsula,' meaning 'almost island.' Florida, South Korea, and Italy are all well-known examples of peninsulas." What best describes a peninsula based on the passage?

Land surrounded by water on three sides and connected to a landmass on one (Correct answer)
Land completely surrounded by water
A small island that is close to a larger island
An underwater ridge connecting two separate land masses

Correct answer: Land surrounded by water on three sides and connected to a landmass on one

The passage defines a peninsula as land surrounded by water on three sides but connected to a larger landmass on one side.

Question 205: Read the passage: 'The Global Positioning System (GPS) was originally developed by the U.S. Department of Defense for military navigation. The system uses a network of at least 24 satellites orbiting Earth to provide precise location data. While GPS was initially restricted to military use, it was made available to civilians in the 1980s and has since become essential for everyday navigation.' What can be inferred about GPS technology?

Civilian GPS is more accurate than military GPS
GPS was always intended for civilian use
The military no longer uses GPS
Military technologies sometimes become widely used civilian technologies (Correct answer)

Correct answer: Military technologies sometimes become widely used civilian technologies

The passage describes GPS moving from military-only to civilian use, supporting the inference that military technologies can transition to widespread civilian applications.

Question 206: ANTAGONIZE most nearly means:

ignore
provoke hostility (Correct answer)
support
assist

Correct answer: provoke hostility

To antagonize means to cause someone to become hostile or angry.

Question 207: If (3.2 + 3.3 + 3.5)w = w, then what is the value of w?

10
1\/10
1
0 (Correct answer)

Correct answer: 0

Question 208: Reduce the fraction 18/24 to lowest terms.

2/3
3/4 (Correct answer)
9/12
6/8

Correct answer: 3/4

GCF of 18 and 24 is 6. 18÷6 = 3, 24÷6 = 4, so 3/4.

Question 209: If n is a positive integer divisible by 7, and if n < 70, what is the greatest possible value of n?

69
63 (Correct answer)
49
56

Correct answer: 63

We are looking for the largest positive integer 'n' that is a multiple of 7 and strictly less than 70. Listing the multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70. Since 'n' must be less than 70, the greatest possible value from this list is 63.

Question 210: In a purely inductive AC circuit, the current lags the voltage by how many degrees?

90° (Correct answer)
180°
0°
45°

Correct answer: 90°

In a purely inductive circuit, the inductor causes current to lag the applied voltage by exactly 90 degrees.

Question 211: A 200-pound object is lifted 6 feet using a lever with a mechanical advantage of 4. How much force is needed?

100 pounds
50 pounds (Correct answer)
25 pounds
200 pounds

Correct answer: 50 pounds

Force needed = Load ÷ Mechanical Advantage = 200 ÷ 4 = 50 pounds.

Question 212: The commander DELEGATED tasks to junior officers. Delegated means:

canceled
completed alone
criticized
assigned to others (Correct answer)

Correct answer: assigned to others

To delegate means to entrust a task or responsibility to another person.

Question 213: What is the volume of a cylinder with radius 3 cm and height 10 cm? (Use π ≈ 3.14)

282.6 cm³ (Correct answer)
94.2 cm³
188.4 cm³
942 cm³

Correct answer: 282.6 cm³

V = π × r² × h = 3.14 × 9 × 10 = 282.6 cm³.

Question 214: Read the passage: 'The human eye cannot detect radio waves, X-rays, or ultraviolet light — these fall outside the visible spectrum. However, many animals perceive wavelengths invisible to us. Bees can see ultraviolet light, which reveals patterns on flowers invisible to humans that guide bees directly to nectar. Pit vipers detect infrared radiation, helping them locate warm-blooded prey in total darkness.' What is the best inference from this passage?

Flowers evolved UV patterns specifically to attract human gardeners
Human vision is superior to animal vision in all measurable ways
Different species have evolved visual systems matched to their specific survival needs (Correct answer)
Animals that see ultraviolet light can also see infrared radiation

Correct answer: Different species have evolved visual systems matched to their specific survival needs

The examples of bees and pit vipers both illustrate how their unique vision directly serves their survival needs, suggesting evolution shaped each species' visual range.

Question 215: Which part of the human brain controls balance and coordination?

Medulla oblongata
Hypothalamus
Cerebrum
Cerebellum (Correct answer)

Correct answer: Cerebellum

The cerebellum coordinates voluntary movements, balance, and fine motor skills.

Question 216: Read the following passage and answer the question: 'Ancient Roman roads were engineering marvels. Built with multiple layers — a foundation of large stones, then gravel, then smaller stones, topped with flat paving stones — they were carefully sloped from center to edges for drainage. Some Roman roads remained in use for over a thousand years after the fall of the Roman Empire, and traces of their routes survive as modern roads today.' What does the passage suggest about Roman road construction?

Roman roads were wider than modern roads
Roman roads were built exclusively for military purposes
Roman roads were built with exceptional quality and durability (Correct answer)
Roman roads were the first roads ever built

Correct answer: Roman roads were built with exceptional quality and durability

The passage describes Roman roads as 'engineering marvels' with sophisticated multi-layer construction, noting that some remained in use for over a thousand years — indicating exceptional quality and durability.

Question 217: When a spring is compressed to half its natural length, compared to compressing it by one-quarter, the stored energy is:

Half as much
Twice as much
Four times as much (Correct answer)
The same

Correct answer: Four times as much

Spring potential energy = ½kx², where x is the compression distance. If you double the compression distance, energy increases by 2² = 4 times. Half natural length represents twice the compression of quarter natural length.

Question 218: Read the passage and answer the question. "Triage is a process used in emergency medicine and military combat to sort patients by the urgency of their need for treatment. The goal is to do the greatest good for the greatest number of people when resources are limited. Patients are typically categorized as immediate, delayed, minimal, or expectant based on the severity of their condition and likelihood of survival." What is the PRIMARY goal of triage according to the passage?

To do the greatest good for the greatest number when resources are limited (Correct answer)
To ensure every patient receives treatment at the same time
To document injuries for insurance and legal purposes
To identify patients who require surgical intervention

Correct answer: To do the greatest good for the greatest number when resources are limited

The passage explicitly states the goal of triage is to do the greatest good for the greatest number when resources are limited.

Question 219: Which type of screwdriver tip is most resistant to 'cam-out' (slipping out of the screw head) under high torque?

Phillips (#2)
Pozidriv
Torx (star-shaped) (Correct answer)
Flathead (slotted)

Correct answer: Torx (star-shaped)

Torx bits have a 6-pointed star shape that provides full, positive contact with the screw head walls, making them highly resistant to cam-out under high torque because the driving force is applied perpendicular to the screw axis.

Question 220: Ocean tides are primarily caused by which force?

Earth's rotation on its axis
Solar wind pressure on the oceans
Thermal expansion of ocean water
The gravitational pull of the Moon (and to a lesser extent, the Sun) (Correct answer)

Correct answer: The gravitational pull of the Moon (and to a lesser extent, the Sun)

The Moon's gravity pulls ocean water toward it, creating a tidal bulge. The Sun also contributes, and when Sun, Earth, and Moon align (spring tides) the effect is strongest.

Question 221: Which of the following is equivalent to 2 times the total of x plus y?\t

2x(2y)
2x + 2y (Correct answer)
2xy
2x\/2y

Correct answer: 2x + 2y

The phrase 'the total of x plus y' translates to the expression (x + y). '2 times' means to multiply this sum by 2, resulting in 2(x + y). Applying the distributive property, this expression expands to 2x + 2y, meaning 2 is multiplied by both x and y individually.

Question 222: Which of the following best describes a mixture?

A pure substance with one type of molecule
A compound formed through a chemical reaction
A single element in liquid form
Two or more substances combined but not chemically bonded (Correct answer)

Correct answer: Two or more substances combined but not chemically bonded

A mixture contains two or more substances that can be separated by physical means.

Question 223: What is the total surface area of a rectangular prism that is 6 cm × 4 cm × 3 cm?

72 cm²
108 cm² (Correct answer)
216 cm²
144 cm²

Correct answer: 108 cm²

SA = 2(lw + lh + wh) = 2(24 + 18 + 12) = 2(54) = 108 cm².

Question 224: Read the passage: 'Many ancient civilizations built their cities near rivers. Rivers provided fresh water for drinking and irrigation, served as highways for trade, and deposited nutrient-rich silt during floods that made surrounding farmland extremely fertile. However, cities also faced the constant threat of devastating floods.' What is the most accurate inference from this passage?

Rivers were too dangerous for ancient civilizations to rely upon
Ancient civilizations accepted flood risks because rivers offered vital benefits (Correct answer)
Most ancient cities were eventually destroyed by flooding
Ancient people were unaware of the dangers rivers posed

Correct answer: Ancient civilizations accepted flood risks because rivers offered vital benefits

The passage shows rivers provided multiple essential benefits, implying civilizations accepted the flood risk as a worthwhile trade-off.

Question 225: A steel beam deflects more when a load is applied at its center than at its end because:

Steel is weaker in the middle
The bending moment is greatest at the center (Correct answer)
The load is heavier at the center
The center has less material

Correct answer: The bending moment is greatest at the center

A center load on a simply supported beam creates maximum bending moment at midspan, causing greatest deflection there.

Question 226: Vindictive<\/u> most nearly means

thorny
indecent
vengeful (Correct answer)
boorish

Correct answer: vengeful

'Vindictive' describes someone who has a strong desire for revenge or is inclined to seek vengeance. 'Vengeful' is a direct synonym, referring to a person or action characterized by a desire for revenge.

Question 227: The sum of Maria's age and her son's age is 52. In 6 years, Maria will be twice as old as her son was 4 years ago. How old is Maria now?

34
30 (Correct answer)
22
32

Correct answer: 30

Let M be Maria's age and S be her son's age. Then M + S = 52 and M + 6 = 2(S − 4), so M = 2S − 14. Substituting: 2S − 14 + S = 52, so 3S = 66 and S = 22. That makes M = 30. Check: 30 + 6 = 36 and 2(22 − 4) = 36 ✓. 22 is the son's age, not Maria's.

Question 228: What type of wrench is best suited for preventing rounded bolt heads?

Box-end (closed) wrench (Correct answer)
Adjustable wrench
Open-end wrench
Pipe wrench

Correct answer: Box-end (closed) wrench

A box-end wrench surrounds all sides of the bolt head, distributing force evenly and reducing rounding risk.

Question 229: Solve: |x − 4| = 7

x = 3 or x = −11
x = −3
x = 11
x = 11 or x = −3 (Correct answer)

Correct answer: x = 11 or x = −3

x − 4 = 7 gives x = 11; x − 4 = −7 gives x = −3.

ASVAB (Armed Services Vocational Aptitude Battery)

The ASVAB is a multiple-aptitude battery that measures developed abilities and helps predict future academic and occupational success in the military.

225

Questions

153 min

Time Limit

31%

To Pass

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These practice questions were written with AI tools. They are not real exam questions. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

officialasvab.com — Score release, exam format, score validity, retake policy, passing score, test delivery, eligibility, exam information · verified Nov 2026
prod-media.asvabprogram.com — Eligibility · verified Oct 2026