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Heat Transfer

Heat Transfer
A diathermaneous substance __________ the thermal radiation completely.

None of these
Absorbs
Reflects
Transmits

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Heat Transfer
With the increase of temperature, the Col-burn jH factor

Increases
Decreases
May increase or decrease ; depending on temperature
Remains unchanged

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Heat Transfer
Correction is applied to LMTD for __________ flow.

Parallel
Counter
Cross
None of these

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Heat Transfer
It is not preferable to use superheated steam in evaporators, because of its very

low film co-efficient
none of the listed here
high pressure
high temperature

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Heat Transfer
The unit of heat transfer co-efficient in SI unit is

W/m2°K
J/M2°K
J/m°K
W/m°K

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Heat Transfer
The separation of liquid droplets from the vapor is done by a/an __________ , in the evaporators.

Steam ejector
Vacuum pump
Compressor
Entrainment separator

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