Pick out the wrong statement.

Question

Options:

A . Superheated steam is preferably not used for process heating because of its low heat transfer film co-efficient.

B . In a shell and tube heat exchanger, the shell pressure drop is maximum for orifice baffles.

C . S.I. unit of fouling factor is Watt/m².°K.

D . Longitudinal fins are used in extended surface heat exchangers, when the direction of fluid flow is parallel to the axis of the tube.

Answer: Option C
Answer: (c).S.I. unit of fouling factor is Watt/m².°K.

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Question 1. When warm and cold liquids are mixed, the heat transfer is mainly by....

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Question 7. Pick out the wrong statement.....

Question 8. If heat transfer rate varies with the time, it is termed as....

Question 9. Tube expansion allowances exist in __________ heat exchanger.....

Question 10. Pick out the wrong statement.....

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