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

Effective tube surface area for convective heat transfer
Convective heat transfer co-efficient
All of these
Tube side pressure drop and the heat transfer rate

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Heat Transfer
In a heat exchanger, one transfer unit means

None of these
The size of the exchanger in which heat transfer rate is 1 kcal/hr
Both A and B
A section of the exchanger in which change in temperature of one stream equals the average driving force in the section

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