Heat Transfer Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the Average temperature of the fin Surrounding temperature Constant temperature equal to that of the base Temperature of the fin end Average temperature of the fin Surrounding temperature Constant temperature equal to that of the base Temperature of the fin end ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The number of kg vaporised per kg of steam fed to the evaporator is defined as Capacity Economy Rate of vaporisation Rate of evaporation Capacity Economy Rate of vaporisation Rate of evaporation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A BTU/hr.ft.2 °F is equal to 1 kcal/hr. m².°K None of these 1 kcal/hr. m²°C 4.88 kcal/hr. m.2°C 1 kcal/hr. m².°K None of these 1 kcal/hr. m²°C 4.88 kcal/hr. m.2°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will Remain unchanged Increase by 1.8 times Decrease by 22 Increase by 216 Remain unchanged Increase by 1.8 times Decrease by 22 Increase by 216 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Fourier's law, the proportionality constant is called the Thermal conductivity Stefan-Boltzman constant Thermal diffusivity Heat transfer co-efficient Thermal conductivity Stefan-Boltzman constant Thermal diffusivity Heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam is routed through the tube in case of a __________ evaporator. Long tube vertical Basket type Horizontal tube Short tube vertical Long tube vertical Basket type Horizontal tube Short tube vertical ANSWER DOWNLOAD EXAMIANS APP
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