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Heat Transfer

Heat Transfer
The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is

4
43834
2
43832

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Heat Transfer
Mechanical recompression evaporation is used in the production of

Alcohol
Fruits jam
Salt
Distilled water

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Heat Transfer
Increasing the liquor level in the evaporator results in the

increase in liquor film co-efficient
decreased effect of hydrostatic head
increased true temperature drop
decreased capacity

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Heat Transfer
In case of a vertical tube evaporator, with increase in the liquor level, the

True temperature drop increases
Both B and C
Capacity of the evaporator is decreased
Capacity of the evaporator is increased

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Heat Transfer
Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer.

Biot
Reynolds
Grashoff
Stantan

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Heat Transfer
Water is normally used as a coolant in the heat exchange equipments mainly because ofits

High fluidity
Abundance & high heat capacity
Low viscosity
Low density

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MORE MCQ ON Heat Transfer

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