Question

Which of the following wings protect the earthen slopes of the canal and also guide the drainage water?

(a) Canal wings

(b) Land wings

(c) River wings

(d) Side wings

The question was posed to me by my college director while I was bunking the class.

I need to ask this question from Cross Drainage Work Design topic in chapter Cross Drainage Work of Irrigation Engineering

Answer 1

The correct option is (c) River wings

Explanation: Canal wings or land wings provide a strong connection between sides of canal trough and earthen canal banks. Drainage wings or water wings or river wings provide a vertical cut-off for the water seeping from the canal into the drainage bed. It also protects the earthen slopes and guide the drainage water and join it to the guide banks.