Practice Variables In Fluid Flow (14.1.2) - Fluid Flow Dynamics - Fluid Mechanics

Practise this section

9 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
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Define viscosity in your own words.
Show hintHide hint
Think about how thick a liquid feels.
Question 2.
What is the purpose of dimensional analysis?
Show hintHide hint
Consider how it helps compare different variables.
3Question 3.
What does the Reynolds number compare?
- Inertial forces to gravitational forces
- Inertial forces to viscous forces
- Viscous forces to pressure
Show hintHide hint
Think of flow regimes.
4Question 4.
True or False: The Froude number is important in predicting cavitation.
- True
- False
Show hintHide hint
Consider the definitions of these numbers.
Question 5.
A flow in a pipe shows laminar behavior with a Reynolds number of 500. If the velocity increases causing the Reynolds number to rise to 3000, what type of flow is expected, and what factors might lead to turbulence?
Show hintHide hint
Relate flow characteristics to Reynolds number values.
Question 6.
Evaluate a scenario where water flows over a spillway. Given the Froude number is 1.2, what does this indicate about the flow regime?
Show hintHide hint
Associate low and high Froude numbers with energy and flow behavior.

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