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 Poisson’s ratio for concrete None of these increases with richer mixes remains constant decreases with richer mixes None of these increases with richer mixes remains constant decreases with richer mixes ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ? loss due to friction creep of concrete shrinkage of concrete elastic shortening of concrete loss due to friction creep of concrete shrinkage of concrete elastic shortening of concrete ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures When shear stress exceeds the permissible limit in a slab, then it is reduced by Increasing the depth Using high strength steel Using thinner bars but more in number Providing shear reinforcement Increasing the depth Using high strength steel Using thinner bars but more in number Providing shear reinforcement ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The approximate value of the ratio between direct tensile strength and flexural strength is 0.75 0.33 1 0.5 0.75 0.33 1 0.5 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 10 to 15% more 15 to 20% more 25 to 50% more 20 to 25% more 10 to 15% more 15 to 20% more 25 to 50% more 20 to 25% more ANSWER DOWNLOAD EXAMIANS APP
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