Civil Engineering MCQs

Page No. 223

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


a Tensile edge

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b Tensile reinforcement

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cNeutral axis of the beam

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dLongitudinal central axis

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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

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bwl²/8

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cwl²/12

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d wl²/16

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View Answer wl²/16

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


a2R + T = 60

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b R + 2 T = 60

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c 2R + T = 30

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d R + 2 T = 30

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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

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b41,200 kg

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c 412,000 kg

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d None of these

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View Answer 41,200 kg

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


aRectangular columns is 4

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b Circular columns is 6

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cOctagonal columns is 8

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dAll the above

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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

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bBent inward at the floor level

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cStopped just below the floor level and separate lap bars provided

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dAll the above

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View Answer All the above

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


aLoad

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bTemperature stress

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cShrinkage stress

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dAll the above

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View Answer All the above

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


aFixed end

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bFree end

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cMid span

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dMid span and fixed support

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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

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bMid span

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cEvery section

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dQuarter span

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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

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bOver reinforced section

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cEconomic section

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dCritical section

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