The critical flow condition in a channel is given by _______. [Note: 𝛼 – kinetic energy correction factor; 𝑄 – discharge; A c – cross-sectional area of flow at critical flow condition; T c – top width of flow at critical flow condition; 𝑔 – acceleration due to gravity]

$\rm\frac{\alpha Q^2}{g}=\frac{A_c^3}{T_c}$

$\rm\frac{\alpha Q}{g}=\frac{A_c^3}{T_c^2}$

$\rm\frac{\alpha Q^2}{g}=\frac{A_c^3}{T_c^2}$

$\rm\frac{\alpha Q}{g}=\frac{A_c^3}{T_c}$

GATE 2023 Civil Engineering PYQ — Fluid Mechanics and Hydraulic Machines

GATE 2023Set 2PYQMCQanswer keyexplanationeasy

Fluid Mechanics and Hydraulic Machines · Open Channel Flow (CE)

Concept intelligence

Jump into a concept drill from this question.

Studying seriously for GATE CSE?

Keep browsing free. Pro unlocks the paid study loop: explanations, topic mastery, mistake notebook, and custom PYQ drills.

Recurring concept

Open Channel Flow (CE) has appeared in GATE Civil Engineering 16 times across 4 years (2022, 2023, 2024, 2025).

More questions on Open Channel Flow (CE)

∑ has math

open channel flowcritical flowfroude numberkinetic energy correction factor