Concrete Technology and Design of Concrete Structures Air entrainment in the concrete increases workability strength the unit weight the effects of temperature variations workability strength the unit weight the effects of temperature variations ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Admixtures which cause early setting, and hardening of concrete are called workability admixtures air entraining agents retarders accelerators workability admixtures air entraining agents retarders accelerators ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always zero tensile compressive tensile or compressive zero tensile compressive tensile or compressive ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to Deflect downward None of these Deflect downward or upward Deflect upward Deflect downward None of these Deflect downward or upward Deflect upward ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures In prestressed concrete forces of tension and compression change but lever arm remains unchanged both forces of tension and compres-sion as well as lever arm change both forces of tension and compres-sion as well as lever arm remain unchanged forces of tension and compressions remain unchanged but lever arm changes with the moment forces of tension and compression change but lever arm remains unchanged both forces of tension and compres-sion as well as lever arm change both forces of tension and compres-sion as well as lever arm remain unchanged forces of tension and compressions remain unchanged but lever arm changes with the moment ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse) 0.446 xu 0.573 xu 0.416 xu 0.367 xu 0.446 xu 0.573 xu 0.416 xu 0.367 xu ANSWER DOWNLOAD EXAMIANS APP
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