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Heat Transfer

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

Grashoff
Prandtl
Stanton
Nusselt

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Heat Transfer
For a multipass shell and tube heat exchanger, the LMTD correction factor is always

1
> 1
< 1
Between 1 & 2

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Heat Transfer
Vibrations in the tubes of a shell and tube heat exchanger is induced due to the

Vibrations transmitted through piping and/or supports due to external reasons
All of these
Flow of fluid on the tube and shell sides
Oscillations in the flow of shell/tube sides fluid

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Heat Transfer
A metal wire of 0.01 m dia and thermal conductivity 200 W/m.K is exposed to a fluid stream with a convective heat transfer coefficient of 100 W/m².K. The Biot number is

0.025
0.0035
5.6
3.5

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

All of these
Pressure difference between the steam chest and the vapor space above the boiling liquid
Solution being evaporated
Liquid depth over the heating surface

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Heat Transfer
Heat transfer co-efficient (h1) for liquids increases with

Decreasing temperature
Increasing temperature
None of these
Decreasing Reynolds number

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MORE MCQ ON Heat Transfer

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