Mechanical Aptitude Knowledge Questions and Answers 2

Question 1

What simple machine is a doorknob an example of?

Accepted Answer

Wheel and axle

Answer

Lever

Answer

Pulley

Answer

Inclined plane

Question 2

What is the purpose of a flywheel in an engine?

Accepted Answer

To store rotational energy and smooth out power delivery

Answer

To generate electricity

Answer

To cool the engine

Answer

To increase fuel efficiency

Question 3

Which material property describes how well a material can be permanently deformed without breaking?

Accepted Answer

Ductility

Answer

Hardness

Answer

Brittleness

Answer

Elasticity

Question 4

What does a torque wrench measure?

Accepted Answer

The tightening force applied to a fastener

Answer

The speed of rotation

Answer

The size of a bolt

Answer

The hardness of a nut

Question 5

What type of energy does a compressed spring store?

Accepted Answer

Elastic potential energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

Chemical energy

Question 6

What is the primary advantage of using ball bearings in a rotating assembly?

Accepted Answer

They reduce friction between moving parts

Answer

They increase friction

Answer

They add weight for stability

Answer

They lock parts in place