Practice Cubic Equation Of Specific Energy (4.2) - Introduction to Open Channel Flow and Uniform Flow (Contd.)

Practice: Cubic Equation of Specific Energy

Lesson 4.2Introduction to Open Channel Flow and Uniform Flow (Contd.)

Practise this section

11 questions

Flashcard drill
4 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
5 questions · about 3 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is specific energy?
Show hintHide hint
Consider what each term in the equation represents.
Question 2.
What does critical depth represent in open channel flow?
Show hintHide hint
Think about the flow regime changes at this point.
3Question 3.
What does the specific energy equation represent?
- Flow depth
- Kinetic energy
- Total energy in open channel flow
Show hintHide hint
Remember what components make up the specific energy.
4Question 4.
True or False: At critical depth, flow transitions from subcritical to supercritical.
- True
- False
Show hintHide hint
Think about the definitions of subcritical and supercritical flows.
Question 5.
Given a channel depth of 1.5 m, discharge of 10 m³/s, calculate critical depth and confirm flow regime.
Show hintHide hint
Determine if flow is subcritical or supercritical using Froude number.
Question 6.
A channel has a specific energy of 5 m. If the depth is varied, find the alternate depths for this specific energy.
Show hintHide hint
Remember that not all cubic solutions are physically meaningful.

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