Heat Transfer Vibrations in the tubes of a shell and tube heat exchanger is induced due to the Oscillations in the flow of shell/tube sides fluid Vibrations transmitted through piping and/or supports due to external reasons All of these Flow of fluid on the tube and shell sides Oscillations in the flow of shell/tube sides fluid Vibrations transmitted through piping and/or supports due to external reasons All of these Flow of fluid on the tube and shell sides ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer. no lower the largest the least no lower the largest the least ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is None of these Mainly confined to a thin film of fluid near the surface In the central core of the fluid Uniformly distributed throughout the fluid None of these Mainly confined to a thin film of fluid near the surface In the central core of the fluid Uniformly distributed throughout the fluid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Hot surface temperature Liquid density Interfacial tension Liquid viscosity Hot surface temperature Liquid density Interfacial tension Liquid viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 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 Some More Less Either more or less ; depends on the nature of vapor Some More Less Either more or less ; depends on the nature of vapor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Nature of heating surface and distribution of bubbles Viscosity of water All of these Surface tension of water Nature of heating surface and distribution of bubbles Viscosity of water All of these Surface tension of water ANSWER DOWNLOAD EXAMIANS APP
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