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Heat and Mass Transfer

Heat and Mass Transfer
The concept of overall coefficient of heat transfer is used in heat transfer problems of

Convection
Conduction
Radiation
Conduction and convection

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Heat and Mass Transfer
The insulation ability of an insulator with the presence of moisture would

Increase
Decrease
Remain unaffected
May increase/decrease depending on temperature and thickness of insulation

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

10 TR
8 TR
4 TR
2 TR

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Heat and Mass Transfer
The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit

Temperature
Thickness
Area
Time

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Heat and Mass Transfer
Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called

Thermal conductivity
Temperature gradient
Thermal coefficient
Thermal resistance

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Heat and Mass Transfer
Heat is closely related with

Entropy
Liquids
Temperature
Energy

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MORE MCQ ON Heat and Mass Transfer

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