Critical section for shear in case of flat slabs is (adopting standard notations)

In counterfort retaining walls, the main reinforcement in the stem at support is

The diameter of ties in a column should be

In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by

For a reinforced concrete section, the shape of shear stress diagram is

The effect of adding calcium chloride in concrete is<br> i) to increase shrinkage<br> ii) to decrease shrink…

For a cantilever of effective depth of 0.5 m, the maximum span to satisfy vertical deflection limit is

The individual variation between test strength of sample should not be more than