Structural Design ( RCC )

81) In limit state design, permissible bond stress in the case of deformed bars is more

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60%

82) Pre-stressed concrete is more desirable in case of

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Cylindrical pipe subjected to internal fluid pressure

83) In a doubly reinforced rectangular beam, the allowable stress in compression steel is

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Less than the permissible stress in tension in steel

84) The diagonal tension which results ultimate failure due to development diagonal tension cracks, depends on

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Both (a) and (b)

85) For reinforced concrete exposed to sulphate attack minimum grade required is

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M 20

86) minimum period stipulated for moist curing of concrete using ordinary Portland cement is

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7 days

87) Addition of sugar in concrete (about 0.05% of weight of cement) results in

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Increasing the setting time by about 4 hours

88) the limit of loss on ignition for ordinary Portland cement is

89) Maximum permissible limit of magnesia content in ordinary Portland cement is

90) Increase in fineness modulus of aggregate indicates

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coarse grading

Subject Notes

Objective Box

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