Compact, Shell & Tube Heat Exchangers - MCQs with Answers

Compact, Shell & Tube Heat Exchangers – MCQs with Answers

1. What are the compact heat exchangers?

a. the heat exchangers having small surface area per unit volume
b. the heat exchangers having large surface area per unit volume
c. the heat exchangers having small surface area per unit weight
d. the heat exchangers having large surface area per unit weight

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2. The heat exchanger is said to be compact when its area density is

a. equal to 700 m²/ m³
b. less than 700 m²/ m³
c. more than 700 m²/ m³
d. unpredictable

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3. Which of the following can be considered as more compact efficient heat exchanger?

a. Car radiators
b. Stirling engine regenerator
c. Ceramic regenerator in gas turbine
d. none of the above

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4. The compact heat exchangers are commonly used in

a. gas to gas heat transfer
b. gas to liquid heat transfer
c. both a. and b.
d. none of the above

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5. Usually, the flow arrangement of two fluids in compact heat exchangers is

a. parallel flow
b. counter flow
c. cross flow
d. none of the above

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6. What is the purpose of using baffles in shell-and-tube heat exchangers?

a. to maintain uniform spacing between tubes
b. to enhance heat transfer
c. both a. and b.
d. none of the above

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7. Large sized and heavy shell-and-tube heat exchangers are suitable for

a. automotive applications
b. aircraft applications
c. marine applications
d. none of the above

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