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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is viscosity?
💡 Hint: Think about how honey flows compared to water.
Question 2
Easy
Define shear stress.
💡 Hint: Consider applying a force to a fluid's surface.
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 the Reynolds number indicate in fluid flow?
- Type of fluid
- Flow regime
- Viscosity
💡 Hint: Think about how fast the fluid is moving compared to its viscosity.
Question 2
True or False: The Euler number helps compare inertial forces to viscous forces.
- True
- False
💡 Hint: Revisit the definitions of Reynolds and Euler numbers.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A fluid flows through a pipe with a diameter of 0.5 m, at a velocity of 3 m/s. Its dynamic viscosity is 0.001 Pa·s. Calculate the Reynolds number and determine the flow type.
💡 Hint: Ensure to check your density and units.
Question 2
Determine the required power in watts to overcome the drag forces on a vehicle with a drag coefficient of 0.3, frontal area of 2.2 m², traveling at 90 km/h.
💡 Hint: Convert the velocity to m/s and find density for the calculations.
Challenge and get performance evaluation