Berms are provided in canals if these are

While estimating a reinforced cement structure, the omitted cover of concrete is assumed

The ground surface slopes 1 in 50 along a proposed railway embankment 150 m in length. The height of the embankment at zero chainage is 0.5 m, the width is 11 m and side slopes 2 : 1. If the falling gradient of the embankment is 1 in 150, the quantity of the earthwork calculated by Prismoidal formula, is

Pick up the correct statement from the following:

Pick up the incorrect statement from the following: