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

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b62.5 m

✓


c96 m

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d124 m

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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

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bat distance — from the plane base 3r

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cat distance — from the plane base 3r

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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

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b J/3

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ch/6

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dh/4

✓


View Answer h/4

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


aarm of man

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bpair of scissors

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cpair of clinical tongs

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dall of the above

✓


View Answer all of the above

In actual machines______________?


a mechanical advantage is greater than velocity ratio

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bmechanical advantage is equal to velocity ratio

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cmechanical advantage is less than velocity ratio

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dmechanical advantage is unity

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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

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c P between W and F

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dW, P and F all on one side

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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

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dmechanical advantage is unity

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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

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blimiting friction

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crepose

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d kinematic friction

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View Answer repose

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


azeioth order

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b first order

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csecond order

✓


dthird order

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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

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bdouble

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chalf

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d four times

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View Answer double

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