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

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.
All of these
In radiation, increasing the temperature and reducing the emissivity.

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Heat and Mass Transfer
Conduction is a process of heat transfer

From one particle of the body to another by the actual motion of the heated particles
From one particle of the body to another without the actual motion of the particles
None of these
From a hot body to a cold body, in a straight line, without affecting the intervening medium

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