ASVAB Mechanical Comprehension Test

Question 1

How much force is needed to lift the 10Kg weight?

Accepted Answer

5 Kg

Answer

2 Kg

Answer

10 Kg

Answer

20 Kg

Question 2

The smaller gear has 8 teeth, and the larger gear has 16 teeth. When the larger gear makes 12 revolutions, how many revolutions will the smaller gear make?

Accepted Answer

24

Answer

8

Answer

16

Answer

18

Question 3

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

Accepted Answer

The amplification of force in a hydraulic system.

Answer

The relationship between force and volume of a liquid.

Answer

The definition of pressure as pounds per square inch.

Answer

The manner in which liquids conform to their container.

Question 4

An 80-lb child is sitting on one end of a seesaw. If another 80-lb child jumps from a high platform onto the other end of the seesaw, what will happen?

Accepted Answer

The first child will be lifted into the air, but remain seated.

Answer

The first child will stay stationary on the ground.

Answer

The second child will bounce off the seesaw into the air.

Answer

The first child will bounce off the seesaw into the air.

Question 5

What is a vector quantity?

Accepted Answer

Gravity

Answer

Magnitude

Answer

Volume

Answer

Mass

Question 6

Which of the following describes the relationship between kinetic energy, mass, and velocity?

Accepted Answer

2(KE) = mv²

Answer

KE = ½ m² v

Answer

(1/3)(KE) = m/v²

Answer

3(KE) = m²v

Question 7

One horsepower is equivalent to

Accepted Answer

746 watts

Answer

724 watts

Answer

768 watts

Answer

782 watts

Question 8

What type of simple machine is pictured above?

Accepted Answer

Second-class lever

Answer

Fulcrum

Answer

First-class lever

Answer

Third-class lever

Question 9

At minimum, how many pulleys are there in a block and tackle system?

Accepted Answer

Two

Answer

One

Answer

Three

Answer

Four

Question 10

When torque increases, speed

Accepted Answer

decreases

Answer

remains the same

Answer

increases, then decreases

Answer

increases