Free Mechanical Aptitude MCQ Question and Answers

Question 1

Which springs-related statement is FALSE?

Accepted Answer

Springs are a kind of simple machines

Answer

Springs constant depends on the properties of material they are made of

Answer

Springs can be used as energy stores

Answer

None of the above

Question 2

What distinguishes a cell from a capacitor most significantly?

Accepted Answer

A capacitor builds up charges on its plates, whereas a cell provides the force necessary to make charges flow through the circuit.

Answer

A cell produce electricity while a capacitor stores it

Answer

A capacitor uses the electrical energy that is stored in a cell as chemical energy.

Answer

None of the above

Question 3

Which assertion concerning air pressure is TRUE?

Accepted Answer

Less than 1 atm of air pressure is present 100 kilometers above sea level.

Answer

More than 1 atm of air pressure is present at 100 kilometers above sea level.

Answer

There is around 1atm of air pressure 100 kilometers above the surface.

Answer

None of the above

Question 4

What is the rate of rotation of the Earth's surface, expressed in kilometers per hour? The Earth has a 6370 km radius. Assign a whole number as the answer.

Accepted Answer

1667 km/h

Answer

6370 km/h

Answer

40000 km/h

Answer

None of the above

Question 5

What value stays the same throughout a ballistic trajectory?

Accepted Answer

Acceleration

Answer

Velocity

Answer

Distance

Answer

None of the above

Question 6

Although the connection that sends current to the iron is chilly, an electric iron heats up. As a result of:

Accepted Answer

Electric iron converts electricity into heat

Answer

Cables do not carry any electricity when iron is operating

Answer

Cables have coolers inside them

Answer

None of the above

Question 7

Which one of the following DOES NOT operate via magnetism?

Accepted Answer

Vehicle

Answer

NMR apparatus

Answer

Compass

Answer

None of the above

Question 8

Used when dealing with bricks or concrete blocks to distribute, shape, and smooth mortar.

Accepted Answer

Masons Trowel (Brick Trowel)

Answer

Cold Chisel (flat Chisel)

Answer

Parallel clamps (handscrew)

Answer

Wood chisels

Question 9

An adjusting wrench for tightening or loosening nuts and bolts of various sizes.

Accepted Answer

Crescent Wrench

Answer

Torque Wrench

Answer

Tap Wrench

Question 10

Used when using a tap to cut internal screw threads. It makes it possible to apply pressure with a better and more even grip.

Accepted Answer

Tap Wrench

Answer

Torque Wrench

Answer

Sheet Metal Punch

Answer

Auger Bit (twist Bit)