Double pipe heat exchangers are used__________________? – McqOptions

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1.	Double pipe heat exchangers are used__________________?
A.	When heat transfer area required is very high
B.	When heat transfer area required is very low, i.e. (100-200 ft2).
C.	Because it occupies less floor area
D.	Because it is less costly
Answer» C. Because it occupies less floor area

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