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Heat Transfer

Heat Transfer
Open pan evaporators are preferred to be used, when the solution to be concentrated is

Salty
Corrosive
Scaling
Highly viscous

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Heat Transfer
Economy of an evaporator is influenced by the

Feed temperature
Both B & C
Steam pressure
Number of effect

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Heat Transfer
A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number.

Condensation
Stantan
Grashoff
Brinkman

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Heat Transfer
For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is

None of these
Backward
Parallel
Forward

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Heat Transfer
What is the absorptivity of a black body?

0.95
1
0.78

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

Froude number
Kutateladze number
Lewis relationship
Nusselt number

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MORE MCQ ON Heat Transfer

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