Civil Engineering MCQs

Critical Flow Questions with solutions MCQs

1. A triangular open channel has a vertex angle of 90 degrees and carries flow at a critical depth of 0.30 m. The discharge in the channel is

A

0.15 m³/s

B

0.2 m³/s

C

0.08 m³/s

D

0.11 m³/s

Critical Flow J.E Civil 2023
Correct Answer : D
Explanation :

For triangular channels, discharge at critical depth is Q = (8/15)√g * tan(θ/2) * yc^(5/2). Substituting θ=90° and yc=0.3 m gives ≈0.11 m³/s.

Correct Answered :

Wrong Answered :

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