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Heat Transfer

Heat Transfer
In forced convection, the heat transfer depends on

mainly Gr
none of the listed here
Re, Pr
Re, Gr

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Heat Transfer
A dephlegmator is a

Vacuum evaporator
Partial condenser
Double pipe heat exchanger
Total condenser

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Heat Transfer
(Cp . μ)/K is termed as the __________ number.

Grashoff
Nusselt
Stanton
Prandtl

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Heat Transfer
At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical?

< 1
> 1
None of these
1

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Heat Transfer
The advantage of using a 1 - 2 shell and tube heat exchanger over a 1 - 1 shell and tube heat exchanger is

Higher shell side heat transfer co-efficient
Lower shell side pressure drop
Lower tube side pressure drop
Higher tube side heat transfer co-efficient

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Heat Transfer
Dropwise condensation occurs on __________ surfaces

clean and dirt free
contaminated cooling
smooth clean
polished

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MORE MCQ ON Heat Transfer

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