EXAMIANS
A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ?
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The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is
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When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling.
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Thermal conductivity of a conducting solid material depends upon its
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Nusselt number is the ratio of the temperature gradient at the wall to
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A hot body will radiate heat most rapidly, if its surface is
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Boiling point elevation of an ideal solution
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For a multipass shell and tube heat exchanger, the LMTD correction factor is always
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Air is best heated with steam in a heat exchanger of
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The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is
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