Concrete Technology and Design of Concrete Structures The individual variation between test strength of sample should not be more than ± 10% of average ±20% of average ± 15% of average ±5% of average ± 10% of average ±20% of average ± 15% of average ±5% of average ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The strength of concrete after one year as compared to 28 days strength is about 25 to 50% more 20 to 25% more 15 to 20% more 10 to 15% more 25 to 50% more 20 to 25% more 15 to 20% more 10 to 15% more 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 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 ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Shrinkage of concrete depends upon i) humidity of atmosphere ii) passage of time iii) stress The correct answer is All (i), (ii) and (iii) only (iii) (ii) and (iii) (i) and (ii) All (i), (ii) and (iii) only (iii) (ii) and (iii) (i) and (ii) 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 0.67 fy 0.57 fy 0.87 fy 0.37 fy 0.67 fy 0.57 fy 0.87 fy 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 accelerators retarders workability admixtures air entraining agents accelerators retarders ANSWER DOWNLOAD EXAMIANS APP
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