FREE IBEW Aptitude Test Mechanical Reasoning Questions and Answers

Question 1

Two gears are meshed together. Gear A has 24 teeth and Gear B has 36 teeth. If Gear A rotates at 90 RPM (revolutions per minute), what is the rotational speed of Gear B?

Accepted Answer

60 RPM

Answer

135 RPM

Answer

90 RPM

Answer

45 RPM

Question 2

A simple lever is used to lift a heavy object. If the effort arm is 3 meters long and the load arm is 0.5 meters long, what is the mechanical advantage of this lever?

Accepted Answer

6

Answer

0.167

Answer

3.5

Answer

1.5

Question 3

Which of the following scenarios describes a situation where kinetic energy is being converted into potential energy?

Accepted Answer

A person climbing a ladder.

Answer

A ball rolling down a hill.

Answer

A car braking to a stop.

Answer

Water flowing through a turbine.

Question 4

Imagine a pulley system designed to lift a heavy load. If the system has 4 supporting ropes, ignoring friction, what is the theoretical mechanical advantage?

Accepted Answer

4

Answer

2

Answer

1

Answer

8

Question 5

A hydraulic press uses a small piston with an area of 5 cm² and a large piston with an area of 50 cm². If a force of 100 N is applied to the small piston, what is the maximum force that can be exerted by the large piston?

Accepted Answer

1000 N

Answer

100 N

Answer

500 N

Answer

50 N

Question 6

What is the primary function of a flywheel in an engine?

Accepted Answer

To store rotational energy and smooth out power delivery.

Answer

To increase the engine's speed.

Answer

To reduce the engine's weight.

Answer

To cool the engine components.

Two gears are meshed together.Gear A has 24 teeth and Gear B has 36 teeth.If Gear A rotates at 90 RPM (revolutions per minute), what is the rotational speed of Gear B?

Two gears are meshed together.
Gear A has 24 teeth and Gear B has 36 teeth.
If Gear A rotates at 90 RPM (revolutions per minute), what is the rotational speed of Gear B?