engineering recuitment PPSC JE Civil Mock Test 2022 Reinforced Concrete Structures Limit State Method
According to IS 456 : 2000, the minimum grade of concrete required for plain concrete and reinforced cement concrete works, under exposure condition "very severe" are ______ and ______respectively.
1
M15, M40
2
M10, M25
3
M20, M35
4
M25, M40