Related Questions

The value of coefficient of adhesion will be high when rails are
A Greased
B Wet
C Sprayed with oil
D Cleaned with sand
If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be
A Higher than the surface of liquid
B The same as the surface of liquid
C Lower than the surface of liquid
D Unpredictable
Coefficient of adhesion reduces due to the presence of which of the following?
A Sand on rails
B Dew on rails
C Oil on the rails
D Both (B) and (C)
Coefficient of adhesion is
A High in case of D.C. traction than in the case of AC. traction
B Low in case of D.C. traction than in the case of AC. traction
C Equal in both Aand D.traction
D Any of the above
Due to which of the following coefficient of adhesion improves?
A Rust on the rails
B Dust on the rails
C Sand on the rails
D All of the above
When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when
A Wheel base of axles is more
B Degree of curvature is more
C Both (A) and (B)
D None of the above
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are
A Less
B More
C Equal
D Less at low temperature and more at high temperature
Which facility is given to the policyholder to neutralise the bargaining power in adhesion contracts?
A Surrender
B Loan
C Assignment
D Free look period
Why insurance contract is an Adhesion Contract?
A Insurance Co. has all the bargaining power
B Client has also great bargaining power
C Both A & B
D None of the three
The dynamic friction is the friction experienced by a body, when the body
A is in motion
B is at rest
C just begins to slide over the surface of the other body
D none of the mentioned

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