Concrete Technology and Design of Concrete Structures Admixtures which cause early setting, and hardening of concrete are called workability admixtures accelerators air entraining agents retarders workability admixtures accelerators air entraining agents retarders ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Approximate value of shrinkage strain in concrete, is 0.0003 3.0E-5 0.003 0.03 0.0003 3.0E-5 0.003 0.03 ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Sinking of an intermediate support of a continuous beami) reduces the negative moment at supportii) increases the negative moment at supportiii) reduces the positive moment at center of spaniv) increases the positive moment at center of span The correct answer is (ii) and (iii) (ii) and (iv) (i) and (iii) (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (iii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures 1% of voids in a concrete mix would reduce its strength by about 10 % 15% 20% 5% 10 % 15% 20% 5% ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The relation between modulus of rupture fcr, splitting strength fcs and direct tensile strength fcl is given by fc5>fcr>fC fcr fcr>fcs>fc. tcr – rcs = tct fc5>fcr>fC fcr fcr>fcs>fc. tcr – rcs = tct ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The maximum value of hoop compression in a dome is given by (where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome) wR/d wR / 4d 2wR/d wR/2d wR/d wR / 4d 2wR/d wR/2d ANSWER DOWNLOAD EXAMIANS APP
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