Civil Engineering MCQJE Level Civil Engineering
A candidate is comparing options for Friction. Which line correctly handles impending motion on a rough plane? Avoid the common trap that friction is independent of normal reaction.
Engineering MechanicsFrictionMEDIUM
Choose the correct answer
A
friction always acts in direction of impending motion
B
coefficient of friction has units of kN
C
limiting friction equals coefficient of friction times normal reaction
D
friction is independent of normal reaction
Correct Answer
C. limiting friction equals coefficient of friction times normal reaction
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Dry friction follows F_lim = mu N. Correct option: C.
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This MCQ belongs to RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.