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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define velocity gradient in your own words.
💡 Hint: Think about how fluid velocity changes across a distance.
Question 2
Easy
What does shear stress represent?
💡 Hint: Consider how forces act on surfaces in fluid dynamics.
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 defines a Newtonian fluid?
- Viscosity changes with temperature
- Viscosity remains constant regardless of shear rate
- Viscosity is only a function of pressure
💡 Hint: Think about how viscosity responds to different conditions.
Question 2
True or False: In non-Newtonian fluids, viscosity is constant.
- True
- False
💡 Hint: Remember the effects leading to changes in viscosity.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A fluid flows through a 1 cm thick layer between stationary and moving plates at 10 m/s. Calculate the shear stress if the viscosity is 0.8 Pa.s.
💡 Hint: Remember the shear stress formula involving viscosity.
Question 2
Discuss the implications of temperature variations on the viscosity of honey compared to air when heated.
💡 Hint: Think about how molecular interactions change with temperature.
Challenge and get performance evaluation