Concrete Technology and Design of Concrete Structures For a longitudinal reinforcing bar in a column, the minimum cover shall neither be less than the diameter of bar nor less than 45mm 50 mm 40 mm 60 mm 45mm 50 mm 40 mm 60 mm ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Admixtures which cause early setting, and hardening of concrete are called accelerators air entraining agents workability admixtures retarders accelerators air entraining agents workability admixtures retarders ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Sinking of an intermediate support of a continuous beam i) reduces the negative moment at support ii) increases the negative moment at support iii) reduces the positive moment at center of span iv) increases the positive moment at center of span The correct answer is (ii) and (iii) (ii) and (iv) (i) and (iv) (i) and (iii) (ii) and (iii) (ii) and (iv) (i) and (iv) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ? elastic shortening of concrete creep of concrete loss due to friction shrinkage of concrete elastic shortening of concrete creep of concrete loss due to friction shrinkage of concrete ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The percentage of voids in cement is approximately 60% 40% 50% 70% 60% 40% 50% 70% ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures For a continuous slab of 3 m x 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is 50 mm 75 mm 100 mm 120 mm 50 mm 75 mm 100 mm 120 mm ANSWER DOWNLOAD EXAMIANS APP
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