**22) In 1930, who was the first to give a graphical method, especially flow net construction? **

a) Darcy

b) Casagrande

c) Forchheimer

d) Kozney

Komal Bhandakkar Answered question January 5, 2021

**Answer: c) Forchheimer**

Explanation:

- The based on trial sketching in 1930, the graphical method of flow net construction was first given by Forchheimer.
- The hydraulic boundary conditions must be examined before sketching is started since it greatly affects the general shape of the flow net.
- To observe the flow net properties, the flow net should be plotted by trial and error method.

Komal Bhandakkar Edited answer January 5, 2021

Answer: c) Forchheimer

Explanation:

The based on trial sketching in 1930, the graphical method of flow net construction was first given by Forchheimer.

The hydraulic boundary conditions must be examined before sketching is started since it greatly affects the general shape of the flow net.

To observe the flow net properties, the flow net should be plotted by trial and error method.

Komal Bhandakkar Answered question January 5, 2021