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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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__________________?
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All reinforcement should be free from_________________?
A. 5%
B. 10%
C. 15%
D. 25%
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The permissible bending stresses Pbet for steel slab bases should not exceed_______________?
A. paints
B. loose rust
C. loose mill scales
D. All the above
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Pick up the correct statement from the following?
A. 1500 kg/cm2
B. 1650 kg/cm2
C. 1800 kg/cm2
D. 1890 kg/cm2
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The anchorage value of standard U-type hook of a reinforcing bar of diameter d in tension, is______________?
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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Pick up the correct statement from the following?
A. 4 d
B. 8d
C. 12 d
D. 16 d
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Pick up the correct statement from the following?
A. The diameter of a rivet, before driving is taken as the nominal diameter of the rivet
B. The diameter of the rivet hole is taken as the gross area of the rivet
C. For rivets of nominal diameters less than 25 mm, the diameter of the rivet hole is taken as the nominal diameter of the rivet plus 1.5 mm
D. All the above
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Pick up the correct statement for the web stiffeners?
A. The minimum pitch of rivets should not be less than 2.5 times the diameter of the rivet hole
B. The distance between centres of two adjacent rivets in line with the direction of stress shall not
C. The distance between the centres of two adjacent rivets in line with the direction of stress shall not exceed 12 t or 203 mm whichever is less in compression members
D. All the above
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Moist sand may contain surface water by mass upto__________________?
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