Concrete Technology and Design of Concrete Structures Select the incorrect statement... None of these Pretensioning system has greater certainty about its durability. The loss of prestress is more in pre-tensioning system than in post-tensioning system. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system None of these Pretensioning system has greater certainty about its durability. The loss of prestress is more in pre-tensioning system than in post-tensioning system. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The average permissible stress in bond for plain bars in tension is increased by 10% for bars in compression decreased by 25% for bars in compression increased by 25% for bars in compression decreased by 10% for bars in compression increased by 10% for bars in compression decreased by 25% for bars in compression increased by 25% for bars in compression decreased by 10% for bars in compression ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Ratio of permissible stress in direct compression and bending compression is less than 1 between 1.5 and 2.0 greater than 2 between 1 and 1.5 less than 1 between 1.5 and 2.0 greater than 2 between 1 and 1.5 ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures Most common method of prestressing used for factory production is Lee-Macall system Long line method Freyssinet system Magnel-Blaton system Lee-Macall system Long line method Freyssinet system Magnel-Blaton system ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures The minimum cover to the ties or spirals should not be less than 15 mm 20 mm 50mm 25 mm 15 mm 20 mm 50mm 25 mm ANSWER DOWNLOAD EXAMIANS APP
Concrete Technology and Design of Concrete Structures According to IS: 456-1978, the column or the strut is the member whose effective length is greater than 3 times the least lateral dimension The least lateral dimension 4 times the least lateral dimension 2 times the least lateral dimension 3 times the least lateral dimension The least lateral dimension 4 times the least lateral dimension 2 times the least lateral dimension ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS