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Heat and Mass Transfer

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

Convection
Radiation
Conduction
Conduction and radiation combined

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Heat and Mass Transfer
The transfer of heat by molecular collision is smallest in

Solids
Liquids
Gases
None of these

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Heat and Mass Transfer
All radiations in a black body are

Refracted
Transmitted
Absorbed
Reflected

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Heat and Mass Transfer
According to Stefan's law, the total radiation from a black body per second per unit area is proportional to

T
T2
Absolute temperature
T5

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Heat and Mass Transfer
In heat transfer, conductance equals conductivity (kcal/hr/sq.m/°C/cm) divided by

Hr (time)
Sq. m (area)
K.cal (heat)
°C (temperature)

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Heat and Mass Transfer
The unit of overall coefficient of heat transfer is

kcal/m² hr °C
kcal/m hr °C
kcal/m²
kcal/hr °C

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MORE MCQ ON Heat and Mass Transfer

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