Civil Engineering MCQs

Critical Depth Questions with solutions MCQs

1. A rectangular channel has a width of 2.0 m and carries a discharge of 4.8 m³/s with a depth of 1.60 m. At a certain section, a small, smooth hump with a flat top and of height 0.10 m is proposed to be built. Calculate the critical depth of flow. Neglect the energy loss.

A

1.824 m

B

1.256 m

C

2.230 m

D

0.876 m

Critical Depth J.E Civil 2023
Correct Answer : B
Explanation :

Using the concept of specific energy and discharge per unit width, the critical depth is calculated as 1.256 m.

Correct Answered :

Wrong Answered :

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