Question

Hydraulic jump is

• A. Uniform flow
• B. Gradually varied flow
• C. Rapidly varied flow
• D. Critical flow

Hint:

Flow classifications: \[ \boxed{ \begin{aligned} \text{Uniform Flow} &\rightarrow \text{Depth constant} \text{Gradually Varied Flow} &\rightarrow \text{Depth changes slowly} \text{Rapidly Varied Flow} &\rightarrow \text{Hydraulic Jump} \end{aligned} } \]

Answer 1

The Correct Option is C

Step 1: Recall the definition of a hydraulic jump. A hydraulic jump is a sudden transition from supercritical flow to subcritical flow in an open channel.

Step 2: Classify the flow. Since the depth changes abruptly over a short distance, it is classified as \[ \boxed{\text{Rapidly Varied Flow (RVF).}} \] Hence, \[ \boxed{(C)} \] is the correct answer.