Allied & ICAR Exam Bank • ALLIED_0383 MCQ • 1 Mark

Section 4: Soil and Water Conservation Engineering

Open Channel Flow

Subtopic: Open Channel Flow

Question Statement:

A hydraulic jump occurs in an open channel when flow transitions from:

Options:

  • (A) Supercritical flow ($Fr > 1$) to subcritical flow ($Fr < 1$)
  • (B) Subcritical flow to supercritical flow
  • (C) Laminar flow to turbulent flow
  • (D) Uniform flow to critical flow

Answer Key:

A

Step-by-Step Solution & Explanation

A hydraulic jump is a rapid, turbulent standing wave through which supercritical flow ($Fr > 1$) transitions abruptly to subcritical flow ($Fr < 1$) with dissipation of kinetic energy.
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