Electrical Analogy - Radiant Heat Transfer - MCQs with Answers

Electrical Analogy – Radiant Heat Transfer – MCQs with Answers


1. Which parameter in the radiant heat exchange between two black bodies is analogous to the voltage in electrical system?

a. Difference in areas of the two black bodies (A1– A2)
b. Difference in two shape factors (F12 – F21)
c. Difference in emissive powers of the two black bodies (Eb1 – Eb2)
d. none of the above

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ANSWER: c. Difference in emissive powers of the two black bodies (Eb1 – Eb2)



2. What is the formula for the analogous resistance for radiant heat exchange between two black bodies?

a. 1 / (A1F21)
b. 1 / (A1F12)
c. both a. and b.
d. none of the above

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ANSWER: c. both a. and b.



3. The rate of radiant flux between two black bodies is analogous to

a. resistance in electrical system
b. voltage in electrical system
c. current in electrical system
d. none of the above

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ANSWER: c. current in electrical system


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