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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define turbulent flow in simple terms.
💡 Hint: Think about how turbulence appears visually in water.
Question 2
Easy
What is shear stress?
💡 Hint: Consider how forces are applied along the direction of flow.
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 is the primary characteristic of turbulent flow?
- Smooth and orderly
- Chaotic and irregular
- Constant velocity
💡 Hint: Think of how turbulent flow appears in nature like in rivers.
Question 2
True or False: Shear stress decreases as you move away from the wall in turbulent flow.
- True
- False
💡 Hint: Consider the forces acting near the surface compared to deeper in the flow.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A pipe with a diameter of 50 mm has a maximum velocity of 2 m/s at the center. If the shear stress at the wall is 70 Pa, calculate the velocity defect using the velocity defect law.
💡 Hint: Use appropriate units and remember the layers in turbulent flow can influence the answer.
Question 2
Given water flowing through a rough pipe with an average height of irregularities of 0.3 mm and a kinematic viscosity of 0.01 m^2/s, determine if the flow is smooth, transitional, or rough.
💡 Hint: Reread the definitions and ensure to convert all measurements to consistent units.
Challenge and get performance evaluation