AFCT Mechanical Aptitude

Question 1

A car’s engine operates using a system that converts heat energy into mechanical energy. This process is known as:

Accepted Answer

Combustion

Answer

Electromagnetic induction

Answer

Friction

Answer

Inertia

Question 2

Which of the following tools would be best used for tightening a bolt?

Accepted Answer

Wrench

Answer

Hammer

Answer

Screwdriver

Answer

Pliers

Question 3

In a simple machine, if you use a lever to lift a heavy load, which of the following will increase your mechanical advantage?

Accepted Answer

Increasing the length of the effort arm

Answer

Decreasing the length of the effort arm

Answer

Increasing the weight of the load

Answer

Decreasing the distance you apply force

Question 4

What type of simple machine is a pulley system?

Accepted Answer

Pulley

Answer

Lever

Answer

Wheel and axle

Answer

Inclined plane

Question 5

Which of the following would reduce friction between two surfaces?

Accepted Answer

Using lubricants

Answer

Increasing the weight on the surfaces

Answer

Roughening the surfaces

Answer

Increasing the temperature of the surfaces