SSC JE Civil Engineering 30-Oct-2020 Shift 2 Paper

Question : 182 of 200

Marks: +1, -0

Specific energy of flowing water through a rectangular channel of width 5 m when discharge is 10

\m^3

/ s and depth of water is 2 m is:

Solution:

Concept:
The specific energy may be given as

{\E}={\y}+{{\V}_{1}^{2}}/{2 {\g}}

Calculation:
We know that
Q = AV
⇒ 10 = 5 × 2 × V
⇒ V = 1 m/s

{\E}={\y}+{{\V}_{1}^{2}}/{2 {\g}}

{\E}=2+{(1)^{2}}/{2 9.81}=2.05 {\m}

Go to Question:

Prev Question

Next Question