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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define natural convection in your own words.
π‘ Hint: Think about how fluids react to heating.
Question 2
Easy
What is the Grashof number?
π‘ Hint: Consider how it relates to fluid movement.
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
Which of the following best describes natural convection?
- Fluid motion driven by external forces
- Fluid motion caused by buoyancy due to density differences
- Fluid motion only in horizontal directions
π‘ Hint: Think about how temperature affects buoyancy.
Question 2
True or False: The Grashof number is used to describe forced convection.
- True
- False
π‘ Hint: Recall the function of the Grashof number.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the Grashof number for a vertical plate with a surface temperature of 60Β°C, ambient temperature of 20Β°C, a characteristic length of 0.5 m, and a kinematic viscosity of 1.0 x 10^-6 mΒ²/s.
π‘ Hint: Donβt forget to find Ξ² for the specific fluid.
Question 2
Discuss how you would design a system to enhance natural convection in an insulated home.
π‘ Hint: Think about how maximizing surface contact with air would help.
Challenge and get performance evaluation