Mixed Deck — All AFCT Topics Flashcards

Three puzzle pieces connect at labeled points. Piece A connects to Piece B at point 'x', and Piece B connects to Piece C at point 'y'. What can be concluded?

Answer: Piece A and Piece C are not directly connected

Piece A connects to B at 'x' and B connects to C at 'y', but A and C have no stated direct connection.

Choose the word that best completes the sentence: 'The commander's decision was _____ by all officers in the unit.'

Answer: Endorsed

Endorsed means to declare approval or support, fitting for officers supporting their commander's decision.

What type of galaxy is the Milky Way?

Answer: Barred spiral galaxy

The Milky Way is classified as a barred spiral galaxy (type SBbc). It has a central bar-shaped structure of stars from which spiral arms extend outward in a pinwheel pattern.

What is the total resistance (RT) of a circuit with three resistors (R1=10Ω, R2=20Ω, R3=30Ω) connected in series?

Answer: 60Ω

In a series circuit, the total resistance is the sum of all individual resistances. The current flows through each resistor sequentially, so their resistances add up. Therefore, RT = R1 + R2 + R3.

What is the function of the ozone layer in Earth's atmosphere?

Answer: Blocks harmful ultraviolet radiation

The ozone layer in the stratosphere absorbs and blocks most of the sun's harmful ultraviolet (UV) radiation from reaching Earth's surface.

Select the word that is the opposite of "verbose."

Answer: Brief

The word "verbose" means using or containing more words than are needed, describing someone who is long-winded or excessively talkative. Therefore, the opposite of "verbose" is "brief," which means short in duration or concise in expression. "Brief" directly contrasts with the idea of using too many words.

If two gears are meshed together, what can be said about their rotation?

Answer: They rotate in opposite directions

When two gears mesh directly, they always rotate in opposite directions because the teeth of one push the teeth of the other.

During a field exercise on a cool, clear night, soldiers notice that the outside of their canteens are wet with dew by morning. This formation of liquid water from vapor in the air is an example of what process?

Answer: Condensation

Condensation is the process where water vapor (a gas) in the air turns into liquid water. As the air cools during the night, its ability to hold water vapor decreases, causing the vapor to condense onto cool surfaces like the canteens.

According to Kirchhoff's Current Law, what happens at a junction in an electrical circuit?

Answer: The sum of currents entering the junction equals the sum of currents leaving it

Kirchhoff's Current Law (KCL) states that the total current entering a junction must equal the total current leaving it. This is based on the conservation of electric charge.

Which of the following tools is specifically designed to measure a very small gap or clearance between two parts, such as a spark plug gap?

Answer: A feeler gauge

A feeler gauge is a tool consisting of several small lengths of steel of different, calibrated thicknesses. It is used by inserting the blades into a gap until a slight drag is felt, allowing for a precise measurement of the clearance.

Read the passage: 'The military phonetic alphabet assigns a specific word to each letter to avoid confusion during radio communications. For example, Alpha represents A, Bravo represents B, and Charlie represents C. This system prevents miscommunication between similar-sounding letters such as B and D, or M and N, which could lead to critical errors in the field.' The phonetic alphabet was developed primarily to:

Answer: Prevent miscommunication over radio

The passage states the system 'prevents miscommunication between similar-sounding letters' during radio communications.

What is the primary function of a transistor in an electronic circuit?

Answer: To amplify or switch electronic signals

Transistors are semiconductor devices that can amplify weak signals or act as electronic switches. They are the fundamental building blocks of modern electronics, from amplifiers to digital logic gates.

What is the primary function of white blood cells in the human body?

Answer: Fight infections

White blood cells (leukocytes) are the body's primary defense against infections and foreign invaders.

In a circuit diagram, what does a triangle symbol pointing toward a line represent?

Answer: A diode

A triangle pointing toward a perpendicular line is the standard schematic symbol for a diode. The triangle represents the anode side, and the line represents the cathode, indicating the direction of conventional current flow.

The soldier showed exceptional fortitude during the grueling training exercise. 'Fortitude' most nearly means:

Answer: courage in pain or adversity

'Fortitude' refers to mental and emotional strength in facing difficulty, adversity, danger, or temptation courageously. While physical strength might be involved, fortitude specifically describes inner resilience.

What is the purpose of motor oil in an engine?

Answer: To lubricate, cool, clean, and seal engine components

Motor oil lubricates moving parts, cools components, cleans deposits, and helps seal piston rings against cylinder walls.

A spring scale reads 10 pounds when a box is hung from it. Pulled horizontally on a table, the scale reads 4 pounds to start sliding. What is the coefficient of static friction?

Answer: 0.4

Coefficient of static friction = friction force / normal force = 4 / 10 = 0.4.

What is an isotope?

Answer: An atom with the same number of protons but a different number of neutrons

Isotopes are atoms of the same element that have the same number of protons (same atomic number) but different numbers of neutrons (different mass numbers). For example, Carbon-12 and Carbon-14 are both carbon but have 6 and 8 neutrons respectively.

If you look at a cube from directly above, what shape do you see?

Answer: Square

Looking at a cube from directly above shows the top face, which is a perfect square.

Which state of matter has a definite volume but no definite shape?

Answer: Liquid

A liquid has a definite volume but takes the shape of whatever container holds it.