Concrete Technology and Design of Concrete Structures The purpose of reinforcement in pre-stressed concrete is To impart initial compressive stress in concrete All of these To resist tensile stresses To provide adequate bond stress To impart initial compressive stress in concrete All of these To resist tensile stresses To provide adequate bond stress ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called under-reinforced beam None of these over-reinforced beam balanced beam under-reinforced beam None of these over-reinforced beam balanced beam ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Finer grinding of cement does not affect the strength both (a) and (b) affects only the early development of strength affects only the ultimate strength does not affect the strength both (a) and (b) affects only the early development of strength affects only the ultimate strength ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The percentage of voids in cement is approximately 70% 50% 60% 40% 70% 50% 60% 40% ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures In prestressed concrete forces of tension and compressions remain unchanged but lever arm changes with the moment both forces of tension and compres-sion as well as lever arm remain unchanged both forces of tension and compres-sion as well as lever arm change forces of tension and compression change but lever arm remains unchanged forces of tension and compressions remain unchanged but lever arm changes with the moment both forces of tension and compres-sion as well as lever arm remain unchanged both forces of tension and compres-sion as well as lever arm change forces of tension and compression change but lever arm remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The minimum cover to the ties or spirals should not be less than 50mm 15 mm 20 mm 25 mm 50mm 15 mm 20 mm 25 mm ANSWER DOWNLOAD EXAMIANS APP