Minimum grade of concrete to be used in reinforced concrete as per IS:456-1978 is_____________?

Related Mcqs:

According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as______________?

A. Ec = = 5700 B. Ec = = 570 C. Ec = = 5700fck D. Ec = where fck N/mm2 = 700 is the characteristic strength in...

The slab is designed as one way if the ratio of long span to short span is_____________?

A. less than 1 B. between 1 and 1.5 C. between 1.5 and 2 D. greater than 2...

The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is______________?

A. not needed B. provided equally on inner and front faces C. provided more on inner face than on front face D. provided more on front face than on inner face...

In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always________________?

A. zero B. tensile C. compressive D. tensile or compressive...

Select the incorrect statement?

A. The loss of prestress is more in pre-tensioning system than in post-tensioning system. B. Pretensioning system has greater certainty about its durability. C. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system D. none of the above...