Heat Transfer Film boiling is usually not desired in commercial equipments, because it is not economic none of the listed here it is difficult to maintain the heat transfer rate is low in view of the large temperature drop. @ it is not economic none of the listed here it is difficult to maintain the heat transfer rate is low in view of the large temperature drop. @ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For what value of Prandtl number, St = f/2? 1.5 1 > 1 2 1.5 1 > 1 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat flux through several resistances in series in analogous to the current flowing through several. resistances in series capacitors in series none of the listed here resistances in parallel resistances in series capacitors in series none of the listed here resistances in parallel ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions ? Assume that the conductive heat transfer co-efficient is infinitely large. 10 minutes 20 minutes 40 minutes 5 minutes 10 minutes 20 minutes 40 minutes 5 minutes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction in the turbulent core of a fluid flowing through a heated pipe is negligible, if the value of Prandtl number is 0.2 0.8 0.4 0.6 0.2 0.8 0.4 0.6 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger, one transfer unit means The size of the exchanger in which heat transfer rate is 1 kcal/hr A section of the exchanger in which change in temperature of one stream equals the average driving force in the section Both A and B None of these The size of the exchanger in which heat transfer rate is 1 kcal/hr A section of the exchanger in which change in temperature of one stream equals the average driving force in the section Both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
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