As per I.S. 456 – 1978, the pH value of water shall be_______________?
(A) Less than 6
(B) Equal to 6
(C) Not less than 6
(D) Equal to 7
If diameter of a reinforcement bar is d, the anchorage value of the hook is_______________?
(A) 4d
(B) 8d
(C) 12d
(D) 16d
If is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is________________?
(A) 0.3 H
(B) 0.4 H
(C) 0.5 H
(D) 0.7 H
The length of the straight portion of a bar beyond the end of the hook, should be at least_______________?
(A) Twice the diameter
(B) Thrice the diameter
(C) Four times the diameter
(D) Seven times the diameter
If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is_______________?
(A) K/x (1 + x/d) + bw
(B) Kx (1 – x/l) + bw
(C) Kx (1 + x/l) + bw
(D) All the above
The maximum shear stress (qmax) in a rectangular beam is_______________?
(A) 1.25 times the average
(B) 1.50 times the average
(C) 1.75 times the average
(D) 2.0 times the average
According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is_____________?
(A) 5 kg/cm2
(B) 10 kg/cm 2
(C) 15 kg/cm2
(D) 20 kg/cm2
Distribution reinforcement in a simply supported slab, is provided to distribute_______________?
(A) Load
(B) Temperature stress
(C) Shrinkage stress
(D) All the above
Design of R.C.C. cantilever beams, is based on the resultant force at______________?
(A) Fixed end
(B) Free end
(C) Mid span
(D) Mid span and fixed support
Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at________________?
(A) Supports
(B) Mid span
(C) Every section
(D) Quarter span