Heat Transfer MCQ Questions & Answers

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Each section contains 100 MCQs on Heat Transfer .

Heat waves

A) Can not pass through vacuum B) Travel in straight line C) Can be reflected by a mirror D) Both B and C

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger?

A) Tube side pressure drop and the heat transfer rate B) Convective heat transfer co-efficient C) Effective tube surface area for convective heat transfer D) All of the above

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which characteristic of a fluid is not important in deciding its route in a shell and tube heat exchanger?

A) Corrosiveness B) Fouling characteristic C) Viscosity D) None of these

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature)

A) (ΔT)² B) (ΔT)⁴ C) (ΔT)³ D) $$\sqrt {\Delta {\text{T}}} $$

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature)

A) Δt B) Δt² C) Δt³ D) $$\sqrt {\Delta {\text{t}}} $$

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

__________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side.

A) Single pass, fixed tube sheet B) U-tube C) Three pass, fixed tube sheet D) None of these

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Answer & Solution

Answer: Option B

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Which of the following has the highest thermal conductivity?

A) Brick B) Air C) Water D) Silver

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Overall heat transfer co-efficient for cooling of hydrocarbons by water is about

A) 50 - 100 kcal/hr.m².°C B) 50 - 100 W/m².°K C) 50 - 100 BTU/hr.ft².°F D) 1000 - 1500 BTU/hr.ft².°F

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Answer & Solution

Answer: Option C

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Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.)

A) $$\sqrt {\text{d}} $$ B) d C) d² D) d^1.5

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The critical radius of insulation for cylindrical pipe is (where, h_i = heat transfer coefficient at inside of the pipe )

A) $$\frac{{\text{K}}}{{{{\text{h}}_0}}}$$ B) $$\frac{{2{\text{K}}}}{{{{\text{h}}_0}}}$$ C) $$\frac{{{{\text{h}}_{\text{i}}}}}{{\text{K}}}$$ D) $$\frac{{2{{\text{h}}_{\text{i}}}}}{{\text{K}}}$$

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Heat Transfer MCQ Questions & Answers | Chemical Engineering