Concrete Technology and Design of Concrete Structures If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bending compression. depends on aCbC only depends on both crst and acbc depends on as, only is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bending compression. depends on aCbC only depends on both crst and acbc depends on as, only ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by 40% 50% 60% 70 % 40% 50% 60% 70 % ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures For walls, columns and vertical faces of all structural members, the form work is generally removed after 3 days 14 days 24 to 48 hours 7 days 3 days 14 days 24 to 48 hours 7 days ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The effect of adding calcium chloride in concrete is i) to increase shrinkage ii) to decrease shrinkage iii) to increase setting time iv) to decrease setting time The correct answer is (i) and (iii) (ii) and (iii) (ii) and (iv) (i)and(iv) (i) and (iii) (ii) and (iii) (ii) and (iv) (i)and(iv) ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called creep bleeding bulking segregation creep bleeding bulking segregation 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 ? shrinkage of concrete creep of concrete elastic shortening of concrete loss due to friction shrinkage of concrete creep of concrete elastic shortening of concrete loss due to friction ANSWER DOWNLOAD EXAMIANS APP
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