Practice Conduction Resistance (2.1) - Conduction Heat Transfer - Heat Transfer & Thermal Machines
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Conduction Resistance

Practice - Conduction Resistance

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the formula for conduction resistance?

💡 Hint: Think about the factors that oppose heat transfer.

Question 2 Easy

What Biot number indicates a valid lumped system approximation?

💡 Hint: Consider why a low Biot number indicates minimal internal temperature gradients.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the equation for conduction resistance?

R_cond = Δx/(kA)
R_cond = kA/Δx
R_cond = 1/(hA)

💡 Hint: Consider which factors increase resistance.

Question 2

True or False: As insulation thickness increases indefinitely, heat loss through a cylinder will always decrease.

True
False

💡 Hint: Think about the relationship between surface area and heat loss.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a hollow cylindrical pipe with inner radius 0.1 m, outer radius 0.15 m, and thermal conductivity of 5 W/mK, calculate the heat loss if the temperature difference across the pipe is 50°C.

💡 Hint: Use the cylindrical heat conduction formula.

Challenge 2 Hard

A material has a thickness of 0.1 m, an area of 2 m², and thermal conductivity of 3 W/mK. Determine its conduction resistance and explain its significance in the context of thermal management.

💡 Hint: Apply the conduction resistance formula.

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