Concrete Technology and Design of Concrete Structures Air entrainment in the concrete increases workability the unit weight strength the effects of temperature variations workability the unit weight strength the effects of temperature variations ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The individual variation between test strength of sample should not be more than ±20% of average ± 10% of average ±5% of average ± 15% of average ±20% of average ± 10% of average ±5% of average ± 15% of average ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Approximate value of shrinkage strain in concrete, is 0.003 3.0E-5 0.0003 0.03 0.003 3.0E-5 0.0003 0.03 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) 0.416 xu 0.446 xu 0.573 xu 0.367 xu 0.416 xu 0.446 xu 0.573 xu 0.367 xu ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The design yield stress of steel according to IS: 456-1978 is (where fy is the characteristic yield strength of steel) 0.37 fy 0.87 fy 0.57 fy 0.67 fy 0.37 fy 0.87 fy 0.57 fy 0.67 fy ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The purpose of reinforcement in pre-stressed concrete is To provide adequate bond stress To resist tensile stresses To impart initial compressive stress in concrete All of these To provide adequate bond stress To resist tensile stresses To impart initial compressive stress in concrete All of these ANSWER DOWNLOAD EXAMIANS APP
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