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Heat and Mass Transfer

Heat and Mass Transfer
An ordinary passenger aircraft requires a cooling system of capacity.

2 TR
4 TR
8 TR
10 TR

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Heat and Mass Transfer
The natural convection air cooled condensers are used in

All of these
Room air conditioners
Domestic refrigerators
Water coolers

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Heat and Mass Transfer
The energy distribution of an ideal reflector at higher temperatures is largely in the range of

Shorter wavelength
Wavelength has nothing to do with it
Remain same at all wavelengths
Longer wavelength

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Heat and Mass Transfer
Stefan Boltzmann law is applicable for heat transfer by

Conduction and radiation combined
Radiation
Convection
Conduction

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Heat and Mass Transfer
Moisture would find its way into insulation by vapour pressure unless it is prevented by

Less thermal conductivity insulator
A vapour seal
High vapour pressure
High thickness of insulation

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Heat and Mass Transfer
The heat is transferred by conduction, convection and radiation in

Condensation of steam in condenser
Boiler furnaces
Melting of ice
None of these

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