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1) Removal of props under______________? a. slabs spanning upto 4.5 m is 14 days b. beams spanning upto 6 m is 14 days c. slabs spanning upto 4.5 m is 7 days d. All the above
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2) The spans of filler joists supporting a slab may be considered approximately equal if the longest span does not exceed the shortest span more than__________________? a. 5% b. 10% c. 15% d. 25%
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3) All reinforcement should be free from_________________? a. paints b. loose rust c. loose mill scales d. All the above
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4) The permissible bending stresses Pbet for steel slab bases should not exceed_______________? a. 1500 kg/cm2 b. 1650 kg/cm2 c. 1800 kg/cm2 d. 1890 kg/cm2
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5) Pick up the correct statement from the following? a. For steel castings, the minimum tensile strength is 41 kg/mm2 and minimum yield stress is 20.5 kg/mm2 b. For high tensile steel, the minimum tensile strength is 58 kg/mm2 c. For mild steel the minimum tensile strength is 44 kg/mm2 and minimum elongation of 23% on a gauge length of 5.65A d. All the above
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6) The anchorage value of standard U-type hook of a reinforcing bar of diameter d in tension, is______________? a. 4 d b. 8d c. 12 d d. 16 d
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7) Pick up the correct statement for the web stiffeners? a. d is the distance between flange angles or the clear distance between flanges b. vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d c. for horizontal stiffeners, d is the clear distance between the horizontal stiffener and the tension flange d. all the above
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8) Moist sand may contain surface water by mass upto__________________? a. 1.25% b. 2.5% c. 5.0% d. 7.5%
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