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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define shear stress.
💡 Hint: Think about forces acting along surfaces.
Question 2
Easy
What does viscosity measure?
💡 Hint: Consider how easy it is for liquids to 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 shear stress?
- Force per unit volume
- Force per unit area
- Pressure per unit area
💡 Hint: Think about what stress means in physical terms.
Question 2
True or False: Viscosity measures how well a fluid can resist deformation.
- True
- False
💡 Hint: Recall the definition of viscosity.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A scale model of a boat has a length of 0.8 m and is tested in water. Given that the dynamic viscosity of water is 1 mPa.s, and you are tasked to find the Reynolds number for a prototype boat of length 20 m at the same speed of 4 m/s.
💡 Hint: Use standard water density of approximately 1000 kg/m³.
Question 2
An object is moving through a fluid at a velocity where viscous forces equal inertia forces. If the object has a diameter of 10 cm and is experiencing a shear stress of 3 Pa, calculate the force exerted on the object by the fluid.
💡 Hint: Don’t forget to convert diameter into meters.
Challenge and get performance evaluation