Q. The thickness of flat single lacing is, taken (where l is effective length of the bar).

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Q. The average 28 days compressive strength of at least three 15 cm concrete cubes prepared with available water as compared to the average strength of three similer concrete cubes prepared with distilled water, should be at least

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Q. The thickness of flat double lacing, is taken (where l is the effective length of the bar).

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Q. Minimum thickness of steel work directly exposed to weather but not accessible for cleaning and repainting, the thickness should be not less than

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Q. The side face reinforcement is provided if the depth of the web of a beam exceeds

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Q. The staggered pitch is the distance between two consecutive rivets measured

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Q. For nominal mix concrete M 20, the required quantity of water per 50 kg. of cement, is

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Q. The ratio 1/r of the lacing bars for compression members shall not exceed

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Q. Four reinforcing bars of 30 mm diameter each, are bundled in contact. The lower two bars extend up to end supports. The distance between the points of termination of the upper bars, is kept

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Q. The maximum spacing of shear reinforcement should not exceed 0.75 d subject to a minimum of

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Q. The development length of each bar of three bars bundled together is increased by

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