Civil Engineering MCQs

Page No. 226

Cantilever retaining walls can safely be used for a height not more than_______________?


a3 m


b4 m


c5 m


d6 m


View Answer 6 m

If the permissible compressive stress for a concrete in bending is C kg/m2, the modular ratio is_____________?


a2800/C


b 2300/2C


c2800/3C


d2800/C2


View Answer 2800/3C

An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is_______________?


a8.3 kg/cm2


b7.6 kg/cm2


c21.5 kg/cm 2


d11.4 kg/cm2


View Answer 8.3 kg/cm2

According to I.S. 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than______________?


a20 cm


b30 cm


c40 cm


d75 cm


View Answer 30 cm

intensity of pressure at a depth h on a block of earth weighing w per unit If p1 is the vertical______________?


a wh (1 – cos )/(1 + ) p2 is


bwh (1 – sin )/(1 + ) )


cwh (1 – tan )/(1 +


d w (1 – cos )/h (1 + sin )



n favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum crushing strength______________?


a100 kg/cm2


b200 kg/cm2


c 300 kg/cm2


d 400 kg/cm2


View Answer 400 kg/cm2

The effective span of a simply supported slab, is_______________?


aDistance between the centres of the bearings


b Clear distance between the inner faces of the walls plus twice the thickness of the wall


cClear span plus effective depth of the slab


dNone of these



A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is______________?


a2.5


b2.0


cLess than 2


d Less than 2.5


View Answer 2.5

A raft foundation is provided if its area exceeds the plan area of the building by______________?


a 10 %


b20 %


c40 %


d50 %


View Answer 50 %

The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes_______________?


aWith the horizontal


bWith the vertical


c With the perpendicular to the inclined plane of the soil


dNone of these


View Answer With the horizontal

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