Question

For the bed of the canal, the average shear stress is equal to the tractive force per unit area.

(a) True

(b) False

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

I'd like to ask this question from Sediment Transport topic in section Sediment Transport and Irrigation Channels Design of Irrigation Engineering

Answer 1

The correct answer is (a) True

The explanation is: The unit tractive force in channels is uniformly distributed along the wetted perimeter. For the bed of the canal, the average shear stress is equal to the tractive force per unit area. For side slopes of the canal, average shear stress is equal to 0.75 times the tractive force per unit area.