Civil Engineering MCQs

Page No. 84

The allowable shear stress in the web of mild steel beams decreases with__________________?


adecrease in h/t ratio


bincrease in h/t ratio


cdecrease in thickness


d increase in height


View Answer increase in h/t ratio

Hudson’s formula gives the dead weight of a truss bridge as a function of_________________?


abottom chord area


btop chord area


ceffective span of bridge


dheaviest axle load of engine


View Answer bottom chord area

A steel beam supporting loads from the floor slab as well as from wall is termed as________________?


astringer beam


b lintel beam


cspandrel beam


dheader beam


View Answer spandrel beam

For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?


aequal angles back to back


bunqual legged angles with long legs back to back


cunequal legged angles with short legs back to back


dboth (B) or (C)



The moment of inertia of the pair of vertical stiffeners about the center line of the web should not be less than__________________?


a1.5dV/C


b1.5d¥/C


c1.5d¥/C2


d1.5dY/C3


View Answer 1.5d¥/C2

In case of plastic design, the calculated maximum shear capacity of a beam as per IS:800 shall be________________?


a0.55 Awfy


b0.65 Awfy


c0.75 Awfy


d0.85 Awfy


View Answer 0.55 Awfy

As per IS:800, in the plastic design, which of the following pairs are correctly matched? Working Loads Load factor________________?


aDead load 1.7


bDead Load + imposed load 1.7


cDead load + load due to wind or 1.3 seismic forces


d(A) and (B) are correct



Which of the following conditions is to be satisfied both in elastic and plastic analysis ?


aequilibrium condition


b yield condition


cplastic moment condition


dmechanism condition


View Answer equilibrium condition

The ratio of plastic section modulus to elastic section modulus__________________?


ais equal to 1


bis always less than 1


cis always greater than 1


d can be less than 1



The mechanism method of plastic analysis satisfies___________________?


aequilibrium and mechanism conditions


bequilibrium and plastic moment conditions


cmechanism and plastic moment conditions


dequilibrium condition only



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