Mechanical Aptitude FREE Mechanical Aptitude Principles Question and Answers 2

Question 1

A worker needs to lift a 200 lb object using a single fixed pulley. How much force must the worker apply to the rope?

Accepted Answer

200 lb

Answer

A single fixed pulley changes the direction of force but does not provide any mechanical advantage, so the full 200 lb must be applied.

Question 2

Which type of stress occurs in a bolt when it is tightened to clamp two plates together?

Accepted Answer

Tensile stress

Answer

Tightening a bolt stretches it along its axis, placing it under tensile stress.

Question 3

If a hydraulic system has a master cylinder with an area of 2 square inches and a slave cylinder with an area of 10 square inches, what is the mechanical advantage?

Accepted Answer

5

Answer

Mechanical advantage equals the slave cylinder area divided by the master cylinder area: 10 / 2 = 5.

Question 4

A beam is supported at both ends with a load applied at the center. What type of beam configuration is this?

Accepted Answer

Simply supported beam

Answer

A beam resting on two supports with a load between them is a simply supported beam.

Question 5

What happens to the pitch of a sound when the frequency of vibration increases?

Accepted Answer

Pitch increases

Answer

Pitch is directly proportional to frequency, so higher frequency produces a higher pitch.

Mechanical Aptitude Test Practice Test

Mechanical Aptitude Test Practice Test

Mechanical Aptitude FREE Mechanical Aptitude Principles Question and Answers 2