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Heat Transfer

Heat Transfer
Viscous & heat sensitive liquids are concentrated in __________ evaporators.

Long tube
Agitated film
None of these
Open pan

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Heat Transfer
Evaporator tubes are generally

Random
Horizontal
Inclined
Vertical

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Heat Transfer
Baffles are provided in heat exchangers to increase the

Fouling factor
Heat transfer area
Heat transfer rate
Heat transfer co-efficient

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Heat Transfer
Which of the following has maximum thermal conductivity?

Tar
Nitrogen
Coal
Iron

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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
Oscillations in the flow of shell/tube sides fluid
Flow of fluid on the tube and shell sides
All of these

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Heat Transfer
In forced convection, the heat transfer depends on

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

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