- (A) bodies having relative motion
- (B) two dry surfaces
- (C) two lubricated surfaces
- (D) solids and liquids
- (E) electrically charged particles
Civil Engineering Mcqs
- (A) kinetic friction
- (B) limiting friction
- (C) angle of repose
- (D) coefficient of friction
- (E) friction force
- (A) Wtan(a + )
- (B) Wtan(a-)
- (C) Wcos(a + )
- (D) Wsin(a + )
- (E) W (sin a + cos )
- (A) r/2
- (B) r/A
- (C) r/%
- (D) 0.134 r
- (E) 3r/8
- (A) balance each other
- (B) cannot balance each other
- (C) produce moment of a couple
- (D) are equivalent
- (E) none of the above
- (A) limiting friction
- (B) sliding friction
- (C) rolling friction
- (D) kinematic friction
- (E) dynamic friction
- (A) j-2
- (B) 2j-l
- (C) 2/-3
- (D) 3/-2
- (E) 2/ -4
- (A) 25
- (B) 50
- (C) 100
- (D) 250
- (E) 500
- (A) kg m
- (B) kcal
- (C) wattr
- (D) watt hours
- (E) kg m x (m/sec)2
- (A) reaction of any smooth surface with which the body is in contact
- (B) reaction of a rough surface of a body which rolls on it without slipping
- (C) reaction at a point or an axis, fixed in space, around which a body is con-strained to turn
- (D) all of the above
- (E) none of the above
