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Heat and Mass Transfer

Heat and Mass Transfer
The amount of radiation mainly depends on

Type of surface of body
Temperature of body
Nature of body
All of these

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Heat and Mass Transfer
In case of liquids and gases, the heat transfer takes place according to

None of these
Radiation
Convection
Conduction

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Heat and Mass Transfer
Fourier's law of heat conduction is valid for

Two dimensional cases only
One dimensional cases only
Regular surfaces having non-uniform temperature gradients
Three dimensional cases only

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

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

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Heat and Mass Transfer
If the temperature of a solid surface changes form 27°C to 627°C, then its emissive power changes in the ratio of

3
270
9
81

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Heat and Mass Transfer
The amount of radiation mainly depends upon the

Temperature of the body
Type of surface of the body
All of these
Nature of the body

ANSWER DOWNLOAD EXAMIANS APP
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