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MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

UNIT - 7 - Friction

113)   

The contact force perpendicular to a surface is called: 

A.
B.
C.
D.
114)   

 What happens when lubricant is applied to a machine part?

A.
B.
C.
D.
115)   

Why is graphite used as a dry lubricant? 

A.
B.
C.
D.
116)   

When does limiting friction come into play?

A.
B.
C.
D.
117)   

Which is true about rolling friction? 

A.
B.
C.
D.
118)   

Choose the correct increasing order of friction: 

A.
B.
C.
D.
119)   

What is the function of anti-friction bearings?

A.
B.
C.
D.
120)   

The coefficient of friction between rubber and dry concrete is:

A.
B.
C.
D.
121)   

 In workshop practice, the best way to reduce wear due to friction is:

A.
B.
C.
D.
122)   

 The device used to measure friction is called: 

A.
B.
C.
D.
123)   

In CNC machines, low-friction guides are used to: 

A.
B.
C.
D.
124)   

Which of the following uses high friction to function properly?

A.
B.
C.
D.
125)   

Dry friction occurs between:

A.
B.
C.
D.
126)   

 The ratio of limiting friction to normal reaction is: 

A.
B.
C.
D.
127)   

In automobiles, friction between tire and road helps in:

A.
B.
C.
D.
128)   

Which type of friction is highest in value?

A.
B.
C.
D.