Question Bank • QB_EXP_SWCE_ENR_010 MSQ • 2 Marks

Section 4: Soil and Water Conservation Engineering

Specific Energy, Critical Flow & Hydraulic Jump

Subtopic: Specific energy and critical flow

Question Statement:

Referring to the specific energy diagram ($E-y$ curve) for a constant discharge in an open channel, which of the following statements is/are correct?

Options:

  • (A) For a given specific energy E > E_min, there exist two alternate depths (one subcritical, one supercritical)
  • (B) At the point of minimum specific energy, the Froude number equals 1.0
  • (C) The upper limb asymptotic to the line E = y corresponds to subcritical flow
  • (D) The lower limb close to the horizontal axis corresponds to supercritical flow

Answer Key:

A, B, C, D

Step-by-Step Solution & Explanation

All four statements accurately describe the classical specific energy diagram in open channel hydraulics.
← Previous (QB_EXP_SWCE_ENR_001) Next (QB_EXP_SWCE_ENR_016) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test