Practice Flow Depth And Velocity Variations (16.2.4)

Practise this section

9 questions

Flashcard drill
5 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Define specific energy in your own words.
Show hintHide hint
Focus on what energy refers to in terms of fluid mechanics.
Question 2.
What is the Froude number for critical flow?
Show hintHide hint
Recall the definition of Froude number.
3Question 3.
What is the condition for critical flow?
- Froude number less than 1
- Froude number equal to 1
- Froude number greater than 1
Show hintHide hint
What type of flow condition is critical flow?
4Question 4.
True or False: Hydraulic jumps only occur in supercritical flows.
- True
- False
Show hintHide hint
Remember the flow types.
Question 5.
A sluice gate controls a flow of water where the upstream depth is 2m and velocity 3m/s. After passing through the gate, calculate the downstream depth assuming a hydraulic jump occurs.
Show hintHide hint
Use mass and energy conservation equations.
Question 6.
Design a rectangular channel with a target Q of 30 m³/s. Determine the optimal width and depth that minimizes the perimeter while maintaining hydraulic efficiency.
Show hintHide hint
Apply calculus to find the minimum perimeter condition.

5 more questions in this section. Enroll free to practise them all.