SSC JE Civil Engineering 23-Mar-2021 Shift 2 Paper

Question : 155 of 200

Marks: +1, -0

What is the rate of flow in a rectangular channel 4 m wide and 2 m deep with a bed slope of 1 in 900 when it is running full if Chezy’s constant is 50?

10.56 $\m^3\/\s$
13.33 $\m^3\/\s$
14.38 $\m^3\/\s$
12.25 $\m^3\/\s$

Validate

Solution:

{\b}=4 {\m}, {\d}=2 {\m}, {\C}=50

{\i}={1}/{900}=0.0011

{\A}=4 ×2=8 {\m}^{2}

{\m}={{\A}}/{{\P}}={4 × 2}/{4+2+2}=1

{\Q}={\A} ×{\C} √{{\m\i}}

=8 ×50 √{1 ×0.001}

=13.33 {\m} \/ {\s}

Go to Question:

Prev Question

Next Question