Heat Transfer Boiling point elevation of a solution of NaOH Both B and C Increases rapidly with temperature rise Is almost independent of pressure Is almost independent of temperature Both B and C Increases rapidly with temperature rise Is almost independent of pressure Is almost independent of temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Corrosiveness of steam condensate is due to the presence of CO₂ Neither A nor B Both A & B Dissolved O₂ CO₂ Neither A nor B Both A & B Dissolved O₂ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The advantage of using a 1 - 2 shell and tube heat exchanger over a 1 - 1 shell and tube heat exchanger is Higher shell side heat transfer co-efficient Lower tube side pressure drop Higher tube side heat transfer co-efficient Lower shell side pressure drop Higher shell side heat transfer co-efficient Lower tube side pressure drop Higher tube side heat transfer co-efficient Lower shell side pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following situations can be approximated to a steady state heat transfer system? 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 Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°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 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 Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°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 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient continues to decrease goes through a maximum. goes through a minimum continues to increase continues to decrease goes through a maximum. goes through a minimum continues to increase ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Log mean temperature difference (LMTD) cannot be used, if the heat capacity is not constant and there is a phase change. heat transfer co-efficient over the entire heat exchanger is not constant there exists an unsteady state none of the listed here the heat capacity is not constant and there is a phase change. heat transfer co-efficient over the entire heat exchanger is not constant there exists an unsteady state none of the listed here ANSWER DOWNLOAD EXAMIANS APP
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