Question

The usual difference between F.T.L and M.T.L is rarely allowed to exceed _____________

(a) 0.3 m

(b) 0.6 m

(c) 0.9 m

(d) 0.5 m

The question was asked in an online interview.

This intriguing question comes from Tank or Surplus Escape Weirs Design topic in section River Navigation & Tank Irrigation of Irrigation Engineering

Answer 1

Right choice is (c) 0.9 m

To elaborate: This difference is fixed on a compromise basis in order to obtain the overall economy and efficiency. It is kept from 0.3 to 0.6 m for small and medium-sized tanks and is rarely allowed to exceed 0.9 m.