APT APT Mechanical Aptitude

Question 1

If gear A has 20 teeth and gear B has 10 teeth, and gear A rotates at 100 RPM, how fast does gear B rotate?

Accepted Answer

200 RPM

Answer

50 RPM

Answer

100 RPM

Answer

150 RPM

Question 2

Which type of lever has the fulcrum between the effort and the load?

Accepted Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Answer

Fourth-class lever

Question 3

A pulley system with 4 pulleys requires an effort force to lift a 400-pound load. Approximately how much effort is needed?

Accepted Answer

100 lbs

Answer

50 lbs

Answer

200 lbs

Answer

400 lbs

Question 4

What is the purpose of a torque wrench?

Accepted Answer

To measure and apply a specific tightening force

Answer

To cut bolts

Answer

To remove stripped screws

Answer

To drill pilot holes

Question 5

Water flows through a pipe that narrows from 4 inches to 2 inches in diameter. What happens to the water's speed?

Accepted Answer

It increases

Answer

It decreases

Answer

It stays the same

Answer

It stops

Question 6

Which material is the BEST electrical conductor?

Accepted Answer

Copper

Answer

Rubber

Answer

Wood

Answer

Plastic