ASVAB Practice Test: Video 7 Answers (25 Questions) — Questions and Answers

Question 1: What is the process by which water vapor cools and changes into liquid water called?

Precipitation
Evaporation
Condensation (Correct answer)
Sublimation

Correct answer: Condensation

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

Question 2: If an unbalanced force acts on an object, then the object will begin to accelerate according to:\t

Newton's First Law
Newton's Second Law (Correct answer)
Kepler's Laws of Motion
Kepler's Laws of Resistance

Correct answer: Newton's Second Law

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma). This means that if an unbalanced force acts on an object, it will cause the object to change its velocity, i.e., accelerate. Newton's First Law describes inertia, and Kepler's Laws relate to planetary motion.

Question 3: What is the speed of light in a vacuum, approximately?

30,000 km/s
3,000 km/s
150,000 km/s
300,000 km/s (Correct answer)

Correct answer: 300,000 km/s

Light travels at approximately 300,000 kilometers per second (3 × 10⁸ m/s) in a vacuum.

Question 4: If a bowling ball is pushed with 20 Newtons of force and has a mass of 4 kg, what is its initial acceleration?

2.5 m\/s^2
4 m\/s^2
5 m\/s^2 (Correct answer)
9.8 m\/s^2

Correct answer: 5 m\/s^2

Newton's Second Law of Motion states that Force (F) equals Mass (m) times Acceleration (a), or F = ma. To find the acceleration, rearrange the formula to a = F/m. Given a force of 20 Newtons and a mass of 4 kg, the acceleration is 20 N / 4 kg = 5 m/s².

Question 5: Which planet in our solar system has the most moons?

Uranus
Saturn (Correct answer)
Neptune
Jupiter

Correct answer: Saturn

Saturn has the most confirmed moons of any planet in our solar system, surpassing Jupiter in recent counts.

Question 6: A cam converts which type of motion into another?

Oscillating to circular
Rotary to oscillating/linear (Correct answer)
Circular to hydraulic
Linear to rotary

Correct answer: Rotary to oscillating/linear

A cam converts rotary motion into reciprocating or oscillating linear motion via a follower.

Question 7: A coil spring is compressed to half its natural length. Compared to compressing it one-quarter of its natural length, the stored energy is:

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

Correct answer: Four times as much

Spring potential energy = ½kx²; doubling the compression (x) quadruples the stored energy.

Question 8: An object moving in a circle at constant speed has which type of acceleration?

Centripetal acceleration directed inward (Correct answer)
No acceleration
Centrifugal acceleration directed outward
Tangential acceleration

Correct answer: Centripetal acceleration directed inward

Centripetal acceleration is always directed toward the center of the circle, causing the direction change.

Question 9: A driver gear with 40 teeth meshes with a driven gear with 10 teeth. If the driver turns at 100 RPM, what is the speed of the driven gear?

400 RPM (Correct answer)
200 RPM
100 RPM
25 RPM

Correct answer: 400 RPM

Speed ratio is inverse of tooth ratio: 100 × (40/10) = 400 RPM.

Question 10: A pipe narrows from 4-inch diameter to 2-inch diameter. Compared to the wider section, the fluid velocity in the narrow section is:

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

Correct answer: Four times as fast

The cross-sectional area decreases by a factor of 4 (radius halved), so by continuity, velocity increases 4 times.

Question 11: A dial caliper is used to measure:

Surface roughness
Angles and bevels
The hardness of metal
Inside, outside, and depth dimensions with high precision (Correct answer)

Correct answer: Inside, outside, and depth dimensions with high precision

A dial caliper can measure inside diameters, outside diameters, and depths with precision typically to 0.001 inch.

Question 12: A brad nailer uses which type of fastener?

Roofing nails
Framing nails
Thin 18-gauge finish nails (brads) (Correct answer)
Staples

Correct answer: Thin 18-gauge finish nails (brads)

A brad nailer drives thin 18-gauge nails (brads) that leave minimal holes, ideal for delicate trim work where head visibility is a concern.

Question 13: Which saw blade tooth configuration is best for cutting across the wood grain?

Rip teeth
Crosscut teeth (Correct answer)
Dado teeth
Combination teeth

Correct answer: Crosscut teeth

Crosscut teeth are angled like knives to sever wood fibers cleanly when cutting perpendicular to the grain.

Question 14: In electrical work, what color is the standard neutral wire in US residential wiring?

White (Correct answer)
Red
Green
Black

Correct answer: White

In US residential wiring, white (or gray) identifies the neutral conductor, black is hot, and green or bare copper is ground.

Question 15: What is the purpose of flux when soldering metal?

To color-code the joint for inspection
To strengthen the mechanical bond
To clean the metal and prevent oxidation during heating (Correct answer)
To increase the melting point of the solder

Correct answer: To clean the metal and prevent oxidation during heating

Flux chemically cleans metal surfaces and prevents oxidation while heat is applied, allowing solder to flow and bond properly.

Question 16: Drill bits can be loosened and tightened using a

Flux
Bender head
Bit
Chuck key (Correct answer)

Correct answer: Chuck key

A chuck key is a specialized tool used to manually tighten or loosen the jaws of a drill chuck, which securely holds the drill bit in place. This ensures the drill bit is firmly gripped for safe and effective drilling.

Question 17: In a four-stroke engine, which of the following is NOT one of the four strokes?

Exhaust
Out-take (Correct answer)
Intake
Compression

Correct answer: Out-take

The four standard strokes of a four-stroke internal combustion engine are Intake, Compression, Power (or Combustion), and Exhaust. 'Out-take' is not a recognized term for any of these fundamental phases of engine operation.

Question 18: What does the 'W' in a motor oil designation like 5W-30 stand for?

Wet
Wear
Winter (Correct answer)
Weight

Correct answer: Winter

The 'W' stands for Winter, indicating the oil's viscosity rating at low temperatures to ensure proper cold-weather starting and initial lubrication.

Question 19: Which type of differential allows each drive wheel to rotate at a different speed while still receiving torque?

Open differential (Correct answer)
Locked differential
Transfer case
Limited-slip differential

Correct answer: Open differential

An open differential allows the two driven wheels to rotate at different speeds (needed when cornering) while still transmitting engine torque to both wheels.

Question 20: Which sensor measures the amount of oxygen in the exhaust to help regulate the air-fuel mixture?

MAP sensor
O2 (oxygen) sensor (Correct answer)
MAF sensor
Throttle position sensor

Correct answer: O2 (oxygen) sensor

The oxygen sensor (O2 sensor) monitors oxygen content in exhaust gases and sends signals to the ECU to adjust the air-fuel ratio for optimal combustion and emissions.

Question 21: He took an oath as an officer of the court.

vacation
class
award
promise (Correct answer)

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 22: The news report indicates that bad weather is on the way.

shows (Correct answer)
contradicts
explains
questions

Correct answer: shows

The word "indicates" means to point out, show, or suggest something, often indirectly or as a sign. In the sentence, the news report is showing or suggesting that bad weather is approaching. Therefore, "shows" is the most direct and accurate synonym for how the report conveys this information.

Question 23: The word impart most nearly means:

interrupt
leave
transmit (Correct answer)
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 24: Verbose most nearly means

long-winded (Correct answer)
cruel
voracious
vile

Correct answer: long-winded

'Verbose' describes someone or something that uses too many words, often to the point of being tedious or redundant. 'Long-winded' is a direct synonym, referring to speech or writing that is excessively lengthy and uses more words than necessary.

Question 25: The survivor showed great RESILIENCE. Resilience means:

courage
stubbornness
ability to recover quickly (Correct answer)
strength

Correct answer: ability to recover quickly

Resilience is the capacity to recover quickly from difficulties; toughness.

ASVAB Practice Test: Video 7 Answers (25 Questions)

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

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