Concrete Technology and Design of Concrete Structures The purpose of reinforcement in pre-stressed concrete is 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 To resist tensile stresses All of these ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Poisson’s ratio for concrete None of these increases with richer mixes decreases with richer mixes remains constant None of these increases with richer mixes decreases with richer mixes remains constant ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures High carbon content in the steel causes increase in tensile strength but decrease in ductility increase in both tensile strength and ductility decrease in tensile strength but increase in ductility decrease in both tensile strength and ductility increase in tensile strength but decrease in ductility increase in both tensile strength and ductility decrease in tensile strength but increase in ductility decrease in both tensile strength and ductility ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures As compared to ordinary portland cement, use of pozzuolanic cement increases strength reduces workability increases shrinkage increases bleeding increases strength reduces workability increases shrinkage increases bleeding ANSWER DOWNLOAD EXAMIANS APP
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 depends on as, only depends on both crst and acbc depends on aCbC 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 as, only depends on both crst and acbc depends on aCbC 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. ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The critical section for finding maximum bending moment for footing under masonry wall is located at the edge of the wall halfway between the middle and edge of the wall at the middle of the wall at a distance equal to effective depth of footing from the edge of the wall at the edge of the wall halfway between the middle and edge of the wall at the middle of the wall at a distance equal to effective depth of footing from the edge of the wall ANSWER DOWNLOAD EXAMIANS APP
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