Question

In Chezy's formula $V=C\sqrt{rs}$ for calculating the velocity of flow in circular sewer of diameter D running full, the value of hydraulic mean radius is

• A. D
• B. $\frac{D}{2}$
• C. $\frac{D}{3}$
• D. $\frac{D}{4}$

Answer 1

Answer: (D)

$\frac{D}{4}$

Answer 2

The correct answer is (D) : $\frac{D}{4}$.