Heat Transfer Dropwise condensation occurs on __________ surfaces contaminated cooling polished clean and dirt free smooth clean contaminated cooling polished clean and dirt free smooth clean ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which has the lowest Prandtl number? Water Aqueous solution Liquid metal Lube oil Water Aqueous solution Liquid metal Lube oil ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water is normally used as a coolant in the heat exchange equipments mainly because ofits Abundance & high heat capacity Low viscosity High fluidity Low density Abundance & high heat capacity Low viscosity High fluidity Low density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following situations can be approximated to a steady state heat transfer system? 10 kg of dry saturated steam at 8 kgf/cm² flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°C A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmosheric air at 35°C 10 kg of dry saturated steam at 8 kgf/cm² flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°C A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmosheric air at 35°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the most suitable for the concentration of foamy & frothy liquors? Long tube vertical evaporator Open pan evaporator None of these Agitated film evaporator Long tube vertical evaporator Open pan evaporator None of these Agitated film evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vibrations in the tubes of a shell and tube heat exchanger is induced due to the Vibrations transmitted through piping and/or supports due to external reasons Flow of fluid on the tube and shell sides Oscillations in the flow of shell/tube sides fluid All of these Vibrations transmitted through piping and/or supports due to external reasons Flow of fluid on the tube and shell sides Oscillations in the flow of shell/tube sides fluid All of these ANSWER DOWNLOAD EXAMIANS APP
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