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 Temperature of the fin end Surrounding temperature Average temperature of the fin Constant temperature equal to that of the base Temperature of the fin end Surrounding temperature Average temperature of the fin Constant temperature equal to that of the base ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator is not influenced much by the rate of heat transfer temperature of the feed ratio of the weight of the thin liquor to thick liquor boiling point elevations rate of heat transfer temperature of the feed ratio of the weight of the thin liquor to thick liquor boiling point elevations ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law applies to the heat transfer by conduction radiation convection None of the listed here conduction radiation convection None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, There is no relationship between temperature drop and resistance The temperature drop is inversely proportional to the resistance across which the drop occurs The relationship is not generalised The temperature drops in the two fluids and the wall are proportional to individual resistances There is no relationship between temperature drop and resistance The temperature drop is inversely proportional to the resistance across which the drop occurs The relationship is not generalised The temperature drops in the two fluids and the wall are proportional to individual resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is correct ? Rate = Driving force x Resistance Rate = Resistance/Driving force Resistance = Driving force x Rate Driving force = Rate x Resistance Rate = Driving force x Resistance Rate = Resistance/Driving force Resistance = Driving force x Rate Driving force = Rate x Resistance ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point of a solution according to Duhring's rule is a linear function of the __________ of water. Thermal conductivity Boiling point (at the same pressure) Viscosity Density Thermal conductivity Boiling point (at the same pressure) Viscosity Density ANSWER DOWNLOAD EXAMIANS APP
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