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MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

UNIT - 7 - Friction

129)   

Which condition increases sliding friction?

A.
B.
C.
D.
130)   

Which is an example where friction is undesirable?

A.
B.
C.
D.
131)   

What is the nature of frictional force?

A.
B.
C.
D.
132)   

The friction which occurs when a body slides over another is:

A.
B.
C.
D.
133)   

 Which of the following does not help in reducing friction? 

A.
B.
C.
D.
134)   

The unit of frictional force is: 

A.
B.
C.
D.
135)   

Which of the following is affected by friction?

A.
B.
C.
D.
136)   

Friction in lathe machine between slides and guides is minimized by:

A.
B.
C.
D.
137)   

The coefficient of friction depends on: 

A.
B.
C.
D.
138)   

What will happen if there is no friction at all?

A.
B.
C.
D.
139)   

 In belt drives, friction helps to:

A.
B.
C.
D.
140)   

Which of the following surfaces will produce least friction?

A.
B.
C.
D.
141)   

 The angle of friction is the angle between: 

A.
B.
C.
D.
142)   

The tangent of angle of friction gives:

A.
B.
C.
D.
143)   

When the applied force equals limiting friction, the body:

A.
B.
C.
D.
144)   

 Which of the following materials is commonly used as a solid lubricant?

A.
B.
C.
D.