Question

According to Bligh, a vertical cut-off at U/s end of the floor is less useful than the one at the D/s end of the floor.

(a) True

(b) False

The question was asked in my homework.

I'm obligated to ask this question of Seepage Theories topic in section Seepage Theories and Weirs and Barrages Design of Irrigation Engineering

Answer 1

Right answer is (b) False

Explanation: The worst condition is that when the water level on U/s side is maximum and no water on D/s side. It would be more economical to provide more creep length on U/s side instead of D/s side. A vertical cut-off at U/s end is more useful than at the D/s end of the floor.