Civil Engineering MCQJE Level Civil Engineering
When the problem statement highlights impending motion on a rough plane, which response is technically correct? Avoid the common trap that friction always acts in direction of impending motion.
Engineering MechanicsFrictionMEDIUM
Choose the correct answer
A
coefficient of friction has units of kN
B
friction always acts in direction of impending motion
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.