Heat Transfer A multiple effect evaporator as compared to a single effect evaporator of the same capacity has Lower steam economy Higher solute concentration in the product Higher steam economy Lower heat transfer area Lower steam economy Higher solute concentration in the product Higher steam economy Lower heat transfer area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is Both B and C Thick walled Thin walled having the value of Ao Ai/< 2 Having the value of Ao/Ai > 2 Both B and C Thick walled Thin walled having the value of Ao Ai/< 2 Having the value of Ao/Ai > 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as Q ∝ T⁴ Q ∝ T³ Q ∝ T² None of these Q ∝ T⁴ Q ∝ T³ Q ∝ T² None of these ANSWER DOWNLOAD EXAMIANS APP
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 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 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the ratio of Thermal diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity Momentum diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity Momentum diffusivity to mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A diathermaneous substance __________ the thermal radiation completely. None of these Transmits Reflects Absorbs None of these Transmits Reflects Absorbs ANSWER DOWNLOAD EXAMIANS APP
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