Concrete Technology and Design of Concrete Structures Select the incorrect statement... Pretensioning system has greater certainty about its durability. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system The loss of prestress is more in pre-tensioning system than in post-tensioning system. None of these Pretensioning system has greater certainty about its durability. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system The loss of prestress is more in pre-tensioning system than in post-tensioning system. None of these 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 0.87 fy 0.57 fy 0.37 fy 0.67 fy 0.87 fy 0.57 fy ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The effect of creep on modular ratio is to keep it unchanged to increase it either to decrease or to increase it to decrease it to keep it unchanged to increase it either to decrease or to increase it to decrease it ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The ratio of the diameter of reinforcing bars and the slab thickness is 1/5 1/6 1/4 1/8 1/5 1/6 1/4 1/8 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 ? shrinkage of concrete loss due to friction creep of concrete elastic shortening of concrete shrinkage of concrete loss due to friction creep of concrete elastic shortening of concrete ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures For a longitudinal reinforcing bar in a column, the minimum cover shall neither be less than the diameter of bar nor less than 45mm 60 mm 40 mm 50 mm 45mm 60 mm 40 mm 50 mm ANSWER DOWNLOAD EXAMIANS APP
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