Question

If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.

a.

convection

b.

nucleate boiling

c.

radiation

d.

conduction

Answer: (a).convection

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Q. If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.

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