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MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

UNIT - 7 - Friction

17)   

In workshops, friction is increased for which of the following? 

A.
B.
C.
D.
Answer: B
18)   

Which method is not used to reduce friction?

A.
B.
C.
D.
Answer: D
19)   

When the angle of inclination increases, the frictional force: 

A.
B.
C.
D.
Answer: A
20)   

Friction is necessary in which of the following machine parts?

A.
B.
C.
D.
21)   

A block weighs 200 N. If the coefficient of friction is 0.3, what is the limiting friction? 

A.
B.
C.
D.
22)   

If the angle of friction is 45°, the coefficient of friction is: 

A.
B.
C.
D.
23)   

Which is the correct relation? 

A.
B.
C.
D.
24)   

Which of the following reduces wear and increases efficiency? 

A.
B.
C.
D.
25)   

If a body is sliding on a surface, the friction is: 

A.
B.
C.
D.
26)   

Which factor does not affect friction between two surfaces?

A.
B.
C.
D.
27)   

Frictional force always acts: 

A.
B.
C.
D.
28)   

One way to reduce rolling friction is:

A.
B.
C.
D.
29)   

Limiting friction is the: 

A.
B.
C.
D.
30)   

Friction can be increased by:

A.
B.
C.
D.
31)   

Which friction is highest among the following? 

A.
B.
C.
D.
32)   

The function of ball bearing is to:

A.
B.
C.
D.