Condensation Heat Transfer - MCQs with Answers

Condensation Heat Transfer – MCQs with Answers

1. Which of the following is NOT a type of condensation heat transfer process?

a. drop-wise condensation
b. bulk-wise condensation
c. film-wise condensation
d. none of the above

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2. Which surface does the drop-wise condensation occur on?

a. wettable surface
b. non-wettable surface
c. both a. and b.
d. none of the above

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3. How can the rates of heat transfer from drop-wise condensation and film condensation be compared?

a. the rate of heat transfer from drop-wise condensation is lower than that of film condensation
b. the rate of heat transfer from drop-wise condensation is higher than that of film condensation
c. the rate of heat transfer from drop-wise condensation is equal to that of film condensation
d. unpredictable

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4. Film condensation occurs on a surface when

a. condensate can wet all the surface
b. condensate cannot wet the surface
c. both a. and b.
d. none of the above

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5. The thermal resistance for heat transfer is low in

a. drop-wise condensation
b. film condensation
c. both drop-wise and film condensation
d. unpredictable

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6. Generally, the convection heat transfer coefficient in drop-wise condensation is

a. lower than the convection heat transfer coefficient in film condensation
b. higher than the convection heat transfer coefficient in film condensation
c. equal to the convection heat transfer coefficient in film condensation
d. unpredictable

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7. Surface coating is suitable to maintain

a. drop-wise condensation
b. film condensation
c. both drop-wise and film condensation
d. none of the above

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