Heat Transfer Baffles are provided in heat exchangers to increase the Heat transfer co-efficient Heat transfer area Heat transfer rate Fouling factor Heat transfer co-efficient Heat transfer area Heat transfer rate Fouling factor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall heat transfer co-efficient for cooling of hydrocarbons by water is about 50 -100 W/m² . °K 50 -100 BTU/hr. ft.2°F 50 -100 Kcal/hr.m².°C 1000 - 1500 BTU/hr. ft.2°F 50 -100 W/m² . °K 50 -100 BTU/hr. ft.2°F 50 -100 Kcal/hr.m².°C 1000 - 1500 BTU/hr. ft.2°F ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation. Greater than Lower than Half Is same as Greater than Lower than Half Is same as ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film thickness for laminar film condensation on vertical surface __________ from top to bottom. Cummulatively decreases Remains constant And the surface conductance increase Cummulatively increases Cummulatively decreases Remains constant And the surface conductance increase Cummulatively increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a perfectly transparent surface (like gases), the Transmissivity = 1 All of these Reflectivity = 0 Absorptivity = 0 Transmissivity = 1 All of these Reflectivity = 0 Absorptivity = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by Increasing the tube length Enhancing the fluid pumping rate None of these Keeping the heat transfer surface clean Increasing the tube length Enhancing the fluid pumping rate None of these Keeping the heat transfer surface clean ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS