Heat Transfer The purpose of floating head in a heat exchanger is to Decrease the pressure drop Facilitate its lengthening, if needed Avoid buckling of tubes Provide support for tubes Decrease the pressure drop Facilitate its lengthening, if needed Avoid buckling of tubes Provide support for tubes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Surface tension of water Viscosity of water Nature of heating surface and distribution of bubbles All of these Surface tension of water Viscosity of water Nature of heating surface and distribution of bubbles All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Graetz number > 100 Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Exit fluid temperature = wall temperature Graetz number > 100 Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Exit fluid temperature = wall temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? Triangular pitch Diagonal square pitch Square pitch None of these Triangular pitch Diagonal square pitch Square pitch None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film boiling is usually not desired in commercial equipments, because it is difficult to maintain none of the listed here it is not economic the heat transfer rate is low in view of the large temperature drop. @ it is difficult to maintain none of the listed here it is not economic the heat transfer rate is low in view of the large temperature drop. @ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of total radiating power to the absorptivity of the body depends upon the __________ as per Kirchoffs law. Nature of the body Temperature of the body None of these Wavelength of radiation Nature of the body Temperature of the body None of these Wavelength of radiation ANSWER DOWNLOAD EXAMIANS APP
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