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MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

UNIT - 7 - Friction

33)   

The device used in vehicles to stop motion using friction is:

A.
B.
C.
D.
34)   

In which case is friction unwanted?

A.
B.
C.
D.
35)   

 Which of the following is used to increase friction intentionally?

A.
B.
C.
D.
36)   

Friction depends on:

A.
B.
C.
D.
37)   

Which of the following is true about kinetic friction? 

A.
B.
C.
D.
38)   

Friction is a type of:

A.
B.
C.
D.
39)   

Lubricants are used in machines to:

A.
B.
C.
D.
40)   

What is the cause of friction?

A.
B.
C.
D.
41)   

The unit of coefficient of friction is:

A.
B.
C.
D.
42)   

In machine tools, friction between moving parts is reduced by:           

A.
B.
C.
D.
43)   

Which of the following is NOT a friction-reducing method? 

A.
B.
C.
D.
44)   

Which is not an effect of friction?

A.
B.
C.
D.
45)   

The angle of friction is the angle between: 

A.
B.
C.
D.
46)   

Which type of lubricant is commonly used in lathe machines?

A.
B.
C.
D.
47)   

The main cause of heat generation in machines is:

A.
B.
C.
D.
48)   

Which law of friction states that friction is proportional to the normal reaction?

A.
B.
C.
D.