Question

Factor which doesn’t affect velocity is __________

(a) Gradient of the channel

(b) Volume of the water in the stream

(c) Type of water flowing

(d) Roughness of the channel

The question was posed to me in an interview for internship.

This key question is from Works of Streams and Rivers topic in division Geological Work of Water of Engineering Geology

Answer 1

The correct choice is (c) Type of water flowing

Explanation: The velocity of a stream itself depends on: the gradient of the channel; the roughness of the channel along the base and the sides; the volume of the load in the stream at a given place.