Question

What is the name of the gradient pressure at the exit end?

(a) Gradient of Pressure

(b) Exit Gradient

(c) Streamline Gradient

(d) Equipotential Gradient

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

This interesting question is from Seepage Theories in chapter Seepage Theories and Weirs and Barrages Design of Irrigation Engineering

Answer 1

Correct option is (b) Exit Gradient

For explanation I would say: The upward component of the seepage water force is the disturbing force, and it is proportional to the gradient pressure of water at that point. This gradient pressure of water at the exit end is termed as an exit gradient.