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Heat Transfer

Heat Transfer
Viscous & heat sensitive liquids are concentrated in __________ evaporators.

None of these
Open pan
Long tube
Agitated film

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Heat Transfer
Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats

P and S
P and R
P and Q
R and S

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Heat Transfer
The actual temperature drop across the heating surface in an evaporator depends on the

Feed
Depth of liquid over heating surface
Pressure difference between steam chest and vapour space
All of these

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Heat Transfer
Which of the following is concerned with both heat and mass transfer ?

Kutateladze number
Nusselt number
Lewis relationship
Froude number

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Heat Transfer
Film boiling occurs at __________ pressure.

none of the listed here
atmospheric
very high
negative

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Heat Transfer
Use of transverse baffles in a shell and tube heat exchanger is done to increase the

All of these
Flow velocity
Rate of heat transfer
Turbulence of shell side fluid

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