Question

Fluid height after the hydraulic jump is ________

(a) Normal

(b) Low

(c) High

(d) Zero

The question was posed to me during an interview for a job.

My doubt stems from Hydraulic Jump topic in chapter Non Uniform Flow in Channels of Fluid Mechanics

Answer 1

Right option is (c) High

For explanation: Hydraulic jump is not possible when the initial speed is less than the critical speed. There is a transition that is created during the change. The transition appears as an undulating wave. Fluid height after the hydraulic jump is high.