# Mechanical Engineering Trivia Quiz

10 Questions | Total Attempts: 675  Settings  Mechanical Engineering Trivia quiz

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• 1.
The point, through which the whole weight of the body acts, irrespective of its position, is known as
• A.

A.moment of inertia

• B.

B.centre of gravity

• C.

C.centre of percussion

• D.

D.centre of mass

• 2.
Which of the following is not a scalor quantity.
• A.

A.Force

• B.

B.Speed

• C.

C.Velocity

• D.

D.Accelaration

• 3.
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as
• A.

Newton's First law of motion

• B.

Newton's second law of motion

• C.

Newton's Third law of motion

• D.

D.None of the above

• 4.
In ideal machines, mechanical advantage is __________ velocity ratio.
• A.

A.equal to

• B.

B.less than

• C.

C.greater than

• D.

D.None of the above

• 5.
The minimum force required to slide a body of weight W on a rough horizontal plane is
• A.

W sin θ

• B.

W Cos θ

• C.

W tan θ

• D.

None of the above

• 6.
The moment of inertia of a square of side a about its diagonal is
• A.

A2/8

• B.

a3/12

• C.

a4/12

• D.

a4/16

• 7.
The angular velocity (in rad / s) of a body rotating at N revolutions per minute is
• A.

πN/60

• B.

πN/180

• C.

2πN/60

• D.

2πN/180

• 8.
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.
• A.

Equal to

• B.

Less than

• C.

Greater than

• 9.
A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is
• A.

5

• B.

10

• C.

20

• D.

40

• 10.
The maximum efficiency of a screw jack is
• A.
• B.
• C.
• D.