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Heat Transfer

Heat Transfer
A graph between __________ is called Wilson plot.

1/v0.8 Vs . U
1/U Vs . 1/V
V0.8 Vs . U
1/U Vs . 1/v0.8

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Heat Transfer
In a shell and tube heat exchanger, floating head is used for

Low pressure drop
Less corrosion of tubes
Large temperature differentials
High heat transfer co-efficient

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Heat Transfer
In case of evaporators, liquid entrainment results primarily due to

high heat transfer rate
high heat transfer rate
high vacuum in the evaporator
foaming of the solution

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Heat Transfer
For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

High pressure
Backward feed
None of these
Vacuum

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Heat Transfer
Corrosiveness of steam condensate is due to the presence of

CO₂
Dissolved O₂
Both A & B
Neither A nor B

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Heat Transfer
Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the

Less corrosion problems
High heat transfer co-efficient
Flexibility possible in the baffle arrangement
Low pressure drop

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