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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define wall shear stress.
💡 Hint: Think about what causes friction in fluid flow.
Question 2
Easy
What shape does the velocity profile take in laminar flow?
💡 Hint: Consider how layers of fluid move smoothly in laminar conditions.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does wall shear stress represent in fluid flow?
- Frictional force
- Velocity
- Temperature
💡 Hint: Consider what resistance the fluid faces against the pipe walls.
Question 2
True or False: The Moody chart is only applicable to circular pipes.
- True
- False
💡 Hint: Think about how we can apply concepts from circular flows to other shapes.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a turbulent flow in a pipe has a Reynolds number of 4 million, and the relative roughness is 0.01, what is the friction factor using the Moody chart?
💡 Hint: Study the chart closely; you will observe different zones.
Question 2
For a non-circular duct with a hydraulic diameter of 0.2m, if the flowing viscosity is 0.001 Pa.s at a velocity of 3m/s, calculate the wall shear stress.
💡 Hint: Remember to find the density first and adjust for the hydraulic diameter.
Challenge and get performance evaluation