Civil Engineering MCQs

Page No. 221

An R.C.C. roof slab is designed as a two way slab if________________?


aIt supports live loads in both directions


bThe ratio of spans in two directions is less than 2


cThe slab is continuous over two supports


d The slab is discontinuous at edges



A foundation rests on_______________?


aBase of the foundation


bSub-grade


c Foundation soil


d Both B. and C


View Answer Both B. and C

The horizontal portion of a step in a stairs case, is known as_________________?


aRise


bFlight


cWinder


dTread


View Answer Tread

For stairs spanning horizontally, the minimum waist provided is________________?


a4 cm


b6 cm


c 8 cm


d12 cm


View Answer 12 cm

The advantage of a concrete pile over a timber pile, is_______________?


a No decay due to termites


bNo restriction on length


cHigher bearing capacity


dAll the above


View Answer All the above

The design of a retaining wall assumes that the retained earth________________?


aIs dry


b Is free from moisture


cIs not cohesive


d All the above


View Answer All the above

carrying a uniformly distributed load per metre length is suspended at the A pile of length centre and from other two points 0.15 L from either end ; the maximum hogging moment will be_______________?


aWL²/15


bWL²/30


cWL²/60


dWL²/90


View Answer WL²/90

The maximum ratio of span to depth of a cantilever slab, is_______________?


a8


b10


c12


d16


View Answer 12

If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is______________?


a37 cm


b38 cm


c39 cm


d40 cm


View Answer 40 cm

[A + (m – 1)ASC] known as equivalent concrete area of R.C.C. is given by______________?


aModular ratio method


bLoad factor method


cUltimate load method


dNone of these


View Answer Modular ratio method

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