Concrete Technology and Design of Concrete Structures The purpose of reinforcement in pre-stressed concrete is To resist tensile stresses All of these To impart initial compressive stress in concrete To provide adequate bond stress To resist tensile stresses All of these To impart initial compressive stress in concrete To provide adequate bond stress ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The average permissible stress in bond for plain bars in tension is decreased by 10% for bars in compression increased by 10% for bars in compression increased by 25% for bars in compression decreased by 25% for bars in compression decreased by 10% for bars in compression increased by 10% for bars in compression increased by 25% for bars in compression decreased by 25% for bars in compression ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The ratio of the diameter of reinforcing bars and the slab thickness is 1/4 1/8 1/6 1/5 1/4 1/8 1/6 1/5 ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures As compared to ordinary portland cement, high alumina cement has lower initial and final setting times higher initial and final setting times lower initial setting time but higher final setting time higher initial setting time but lower final setting time lower initial and final setting times higher initial and final setting times lower initial setting time but higher final setting time higher initial setting time but lower final setting time ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The load carrying capacity of a helically reinforced column as compared to that of a tied column is about 10% less 5% less 10% more 5% more 10% less 5% less 10% more 5% more ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Due to circumferential action of the spiral in a spirally reinforced column Ductility of column reduces Capacity of column is decreased but ductility of column increases Both the capacity of column and ductility of column increase Capacity of column is decreased Ductility of column reduces Capacity of column is decreased but ductility of column increases Both the capacity of column and ductility of column increase Capacity of column is decreased ANSWER DOWNLOAD EXAMIANS APP
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