Civil Engineering MCQs

Page No. 258

Half of the main steel in a simply supported slab is bent up near the support at a distance of x from the center of slab bearing where x is equal to________________?


a1/3

✖


b 1/5

✖


c1/7

✓


d1/10 where 1 is the span

✖


View Answer 1/7

In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by_______________?


a10%

✖


b20%

✖


c30%

✖


d40%

✓


View Answer 40%

Ratio of permissible stress in direct compression and bending compression is______________?


aless than 1

✓


bbetween 1 and 1.5

✖


cbetween 1.5 and 2.0

✖


dgreater than 2

✖


View Answer less than 1

A higher modular ratio shows____________?


ahigher compressive strength of con-crete

✖


b lower compressive strength of concrete

✓


chigher tensile strength of steel

✖


d lower tensile strength of steel

✖



Maximum distance between expansion joints in structures as per IS : 456 – 1978 is________________?


a20 m

✖


b30 m

✖


c45 m

✓


d60 m

✖


View Answer 45 m

The average permissible stress in bond for plain bars in tension is_______________?


a increased by 10% for bars in compression

✖


b increased by 25% for bars in compression

✓


cdecreased by 10% for bars in compression

✖


ddecreased by 25% for bars in compression

✖



Critical section for shear in case of flat slabs is at a distance of_______________?


aeffective depth of slab from periphery of column/drop panel

✖


bd/2 from periphery of column/capital/ drop panel

✓


cat the drop panel of slab

✖


dat the periphery of column

✖



If the storey height is equal to length of RCC wall, the percentage increase in strength is_____________?


a0

✖


b10

✓


c 20

✖


d 30

✖


View Answer 10

The slab is designed as one way if the ratio of long span to short span is_____________?


aless than 1

✖


bbetween 1 and 1.5

✖


cbetween 1.5 and 2

✖


d greater than 2

✓


View Answer greater than 2

In reinforced concrete footing on soil, the minimum thickness at edge should not be less than______________?


a100 mm

✖


b 150 mm

✓


c200 mm

✖


d250 mm

✖


View Answer 150 mm

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