Mechanical Aptitude Test Knowledge 1

Question 1

What type of lever is a pair of scissors?

Accepted Answer

First-class lever

Answer

Scissors are first-class levers because the fulcrum (the pivot pin) is located between the effort (your hand) and the load (the material being cut).

Question 2

What is the primary function of a governor in a mechanical system?

Accepted Answer

To regulate and limit operating speed

Answer

A governor automatically regulates the speed of an engine or machine, preventing it from exceeding a set maximum by adjusting fuel or throttle input.

Question 3

Which property of a metal describes its ability to be drawn into a wire?

Accepted Answer

Ductility

Answer

Ductility is the property that allows a material to be stretched or drawn into thin wires without breaking. Copper and gold are highly ductile metals.

Question 4

In a pulley system, what is the mechanical advantage of a single fixed pulley?

Accepted Answer

1

Answer

A single fixed pulley only changes the direction of the force, not its magnitude. The mechanical advantage is 1, meaning the effort required equals the load.

Question 5

What does a manometer measure?

Accepted Answer

Fluid pressure

Answer

A manometer is an instrument used to measure the pressure of gases or liquids. It typically uses a column of liquid to indicate pressure differences.

Mechanical Aptitude Test Practice Test

Mechanical Aptitude Test Practice Test

Mechanical Aptitude Test Knowledge 1