engineering recuitment WBPSC JE Civil Mock Test 2022 Reinforced Concrete Structures Prestress Concrete Losses in Prestress
Select the INCORRECT statement.
1
Pre-stress loss due to elastic shortening of concrete is m × fc.
2
The decrease in stress in steel at a constant strain is called relaxation in steel.
3
A cracked pre-stressed concrete beam behaves as a reinforced cement concrete beam.
4
The minimum concrete grade for pre-tensioning and post-tensioning is M30.