Civil Engineering MCQs

Page No. 223

In a singly reinforced beam, the effective depth is measured from its compression edge to_________________?


a Tensile edge


b Tensile reinforcement


cNeutral axis of the beam


dLongitudinal central axis



For stairs spanning l metres longitudinally between supports at the bottom and top of a flight carrying a load w per unit horizontal area, the maximum bending moment per metre width, is_______________?


awl²/4


bwl²/8


cwl²/12


d wl²/16


View Answer wl²/16

If T and R are tread and rise respectively of a stair, then_______________?


a2R + T = 60


b R + 2 T = 60


c 2R + T = 30


d R + 2 T = 30


View Answer 2R + T = 60

A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2, the Safe load on the column, should not exceed_______________?


a4120 kg


b41,200 kg


c 412,000 kg


d None of these


View Answer 41,200 kg

The minimum number of main steel bars provided in R.C.C________________?


aRectangular columns is 4


b Circular columns is 6


cOctagonal columns is 8


dAll the above


View Answer All the above

If the size of a column is reduced above the floor, the main bars of the columns, are_____________?


aContinued up


bBent inward at the floor level


cStopped just below the floor level and separate lap bars provided


dAll the above


View Answer All the above

Distribution reinforcement in a simply supported slab, is provided to distribute_______________?


aLoad


bTemperature stress


cShrinkage stress


dAll the above


View Answer All the above

Design of R.C.C. cantilever beams, is based on the resultant force at______________?


aFixed end


bFree end


cMid span


dMid span and fixed support


View Answer Fixed end

Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at________________?


aSupports


bMid span


cEvery section


dQuarter span


View Answer Mid span

In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called________________?


aUnder-reinforced section


bOver reinforced section


cEconomic section


dCritical section



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