Heat and Mass Transfer
The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as

Forced convection
Conduction
Radiation
Free convection

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Heat and Mass Transfer
Which of the following would lead to a reduction in thermal resistance?

All of these
In radiation, increasing the temperature and reducing the emissivity.
In conduction, reduction in the thickness of the material and an increase in thermal conductivity.
In convection, stirring of the fluid and cleaning the heating surface.

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