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11
By over-reinforcing a beam, the moment of resistance can be increased not more than
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Answer: Option D
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12
In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed
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Answer: Option D
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13
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
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Answer: Option B
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14
A flat slab is supported
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Answer: Option D
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15
If Sb, is the average bond stress on a bar of diameter d subjected to maximum stress t, the length of the embedment $$l$$ is given by
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Answer: Option D
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16
The minimum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of
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Answer: Option D
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17
Spacing of stirrups in a rectangular beam, is
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Answer: Option D
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18
A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm2, the area of steel required, is
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Answer: Option C
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19
Post tensioning system
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Answer: Option D
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20
An R.C.C. beam not provided with shear reinforcement may develop cracks in its bottom inclined roughly to the horizontal at
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Answer: Option C
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