Question

(7.) In a flow-net diagram the length of the flow line in the
square is 2m, the total head loss is 18 m and the number of
potential drop is 12. The value of exit gradient
(A) 0.33
(B) 0.75
(C) 1.33
(D) 3.0​

Answer 1

Option c is correct

Explanation:

Answer 2

Given: Length of flow line in square = 2m

Head loss = 18m

Potential drop = 12

To Find: Value of the exit gradient

Solution:

Potential drop = Head loss / drop

= 18/12

= 1.5

Using the formula for exit gradient -

Exit gradient = Potential drop in the last field / Length of flow line in square

= 1.5 / 2

= 0.75

Answer: The value of exit gradient is 0.75