Civil Engineering MCQs

Page No. 159

Impulse can be obtained from a_________________?


aforce-displacement diagram


bforce-time diagram


cvelocity-time diagram


dvelocity-displacement diagram


View Answer force-time diagram

Which of the following is a scalar quantity ?


aenergy


bmomentum


ctorque


dimpulse


View Answer energy

Coefficient of friction depends on__________________?


anature of surfaces only


b area of contact only


cboth (A) and (B)


dnone of the above



If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then___________________?


aa force is required to move the body upwards


ba force is required to move the body downward


cthe body will not be in equilibrium


dA and B


View Answer A and B

A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is___________________?


a1/4


b 1/3


c3


d. 4


View Answer 1/3

The shape of a suspended cable for a uniformly distributed load over it is__________________?


acircular


bparabolic


ccatenary


dcubic parabola


View Answer parabolic

A light rope is loaded with many equal weights at equal horizontal intervals. The points of suspension on the rope lie on a_____________________?


aparabola


bcatenary


ccycloid


dellipse


View Answer parabola

A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is___________________?


a1/3


b2/3


c1/9


d 8/9


View Answer 8/9

A ball is dropped from a height of 16 m on a horizontal floor. If it rebounds to a height of 9 m after striking the floor, the coefficient of restitution between ball and floor is_____________________?


a1/4


b2/3


c3/4


d4/3


View Answer 3/4

When a body slides down an inclined surface, the acceleration of the body is given by__________________?


ag


bgsinG


cg cos 6


dg tan 6


View Answer gsinG

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