Heat Transfer While the total emissivity of a perfect black body is unity, the same for a real body is >1 0 between 0 and 1 1 >1 0 between 0 and 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The actual temperature drop across the heating surface of an evaporator depends on the All of these Liquid depth over the heating surface Solution being evaporated Pressure difference between the steam chest and the vapor space above the boiling liquid All of these Liquid depth over the heating surface Solution being evaporated Pressure difference between the steam chest and the vapor space above the boiling liquid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Choose the most important factor on which the heat conducted through a wall in a unit time will depend on? Thickness of the wall Area of the wall perpendicular to heat flow Material of the wall Temperature difference between the two surfaces of the wall Thickness of the wall Area of the wall perpendicular to heat flow Material of the wall Temperature difference between the two surfaces of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat exchangers operating, when the asymptotic range is reached, Provide very large heat transfer co-efficient Results in making part of the heating surface inactive None of these Results in abruptly increased velocity Provide very large heat transfer co-efficient Results in making part of the heating surface inactive None of these Results in abruptly increased velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In an extended surface heat exchanger, fluid having lower co-efficient Should not be used as it gives very high pressure drop Flows through the tube Flows outside the tubes Can flow either inside or outside the tubes Should not be used as it gives very high pressure drop Flows through the tube Flows outside the tubes Can flow either inside or outside the tubes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling. film pool none of the listed here transition film pool none of the listed here transition ANSWER DOWNLOAD EXAMIANS APP
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