Question

By what value the thickness of notch pier should not be less than the water depth?

(a) One fourth of water depth

(b) Equal to water depth

(c) Half the water depth

(d) Three fourth of the water depth

This question was addressed to me in an international level competition.

I'm obligated to ask this question of Canal Falls topic in portion Canal Falls of Irrigation Engineering

Answer 1

Right choice is (c) Half the water depth

Best explanation: The thickness of the notch pier should not less than half of the water depth and even it can be more when the pier has to carry a superstructure.