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Heat Transfer

Heat Transfer
Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter)

0.2 D
0.5 D
0.3 D
0.4 D

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Heat Transfer
Economy of a multiple effect evaporator depends upon the

Neither A nor B
Both A and B
Rate of heat transfer
Heat balance consideration

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Heat Transfer
Duhring rule is important in solving problems on

Distillation
Humidification
Crystallisation
Evaporation

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Heat Transfer
A multiple effect evaporator has a capacity to process 4000 kg of solid caustic soda per day, when it is concentrating from 10% to 25% solids. The water evaporated in kg per day is

6000
48000
60000
24000

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Heat Transfer
Economy of a multiple effect evaporator is not influenced much by the

rate of heat transfer
temperature of the feed
ratio of the weight of the thin liquor to thick liquor
boiling point elevations

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Heat Transfer
Boiling point of a solution according to Duhring's rule is a linear function of the __________ of water.

Thermal conductivity
Density
Viscosity
Boiling point (at the same pressure)

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MORE MCQ ON Heat Transfer

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