Civil Engineering MCQs

Page No. 212

A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly________________?


a38 m


b62.5 m


c96 m


d124 m


View Answer 62.5 m

The C.G. of a solid hemisphere lies on the central radius 3r_______________?


aat distance — from the plane base 3r


bat distance — from the plane base 3r


cat distance — from the plane base 3r


dat distance — from the plane base or



The C.G. of a right circular solid cone of height h lies at the following distance from the base_____________?


a h/2


b J/3


ch/6


dh/4


View Answer h/4

Which of the following is the example of lever of first order________________?


aarm of man


bpair of scissors


cpair of clinical tongs


dall of the above


View Answer all of the above

In actual machines______________?


a mechanical advantage is greater than velocity ratio


bmechanical advantage is equal to velocity ratio


cmechanical advantage is less than velocity ratio


dmechanical advantage is unity



In the lever of third order, load W, effort P and fulcrum F are oriented as follows_________________?


aW between P and F


bF between W and P


c P between W and F


dW, P and F all on one side


View Answer W between P and F

In ideal machines________________?


amechanical advantage is greater than velocity ratio


bmechanical advantage is equal to velocity ratio


cmechanical advantage is less than velocity ratio


dmechanical advantage is unity



The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of__________________?


afriction


blimiting friction


crepose


d kinematic friction


View Answer repose

A pair of smith’s tongs is an example of the lever of__________________?


azeioth order


b first order


csecond order


dthird order


View Answer second order

The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is_________________?


asame


bdouble


chalf


d four times


View Answer double

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