What will be the required depth of the downstream cutoff wall according to Khosla's theory, if the maximum static head is 2.4 m, the total length of the floor is 21.45 m, and the safe exit gradient is 15?

Groynes are constructed for river bank protection. When a groyne is inclined downstream in the direction of flow, it is designated as a:

What is the available moisture depth for evapotranspiration in a root zone of 1 m depth soil, if the dry unit weight of soil is 1.5 g/cc, field capacity is 30%, and permanent wilting point is 10%?