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Heat Transfer

Heat Transfer
Maximum heat transfer rate is achieved in __________ flow.

Co-current
Turbulent
Counter-current
Laminar

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

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

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Heat Transfer
A 2-4 heat exchanger involves

Both counter and parallel-flow of the fluids
Only parallel-flow of fluids
Smaller pressure drop compared to 1-2 exchanger
Only counter-flow of fluids

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Heat Transfer
Viscosity of gases __________ with increase in temperature.

Increase slowly
Decrease slowly
Increase very rapidly
Remain unaffected

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Heat Transfer
Shell side pressure drop in a shell and tube heat exchanger does not depend upon the

None of these
Tube diameter & pitch
Viscosity, density & mass velocity of shell side fluid
Baffle spacing & shell diameter

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Heat Transfer
Thermal conductivity of a conducting solid material depends upon its

temperature
porosity
None of the listed here
both temperature & porosity

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MORE MCQ ON Heat Transfer

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