EXAMIANS
The critical radius is the insulation radius at which the resistance to heat flow is
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Absorptivity of a body will be equal to its emissivity
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Fourier's law of heat conduction gives the heat flow for
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If the energy radiated per second per sq. cm. of the surface for wave lengths lying between λ, and λ + dλ is represented by (eλ.dλ), then eλ is called
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The total radiation from a black body per second per unit area is ________ fourth power of the absolute temperature. This statement is known as Stefan Boltzmann law.
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The rate of heat flow through a body is Q = [kA (T₁ - T₂)]/x. The term x/kA is known as
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The concept of overall coefficient of heat transfer is used in heat transfer problems of
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Which of the following property of air does not increase with rise in temperature?
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A non-dimensional number generally associated with natural convection heat transfer is
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In counter flow heat exchangers
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