Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Remain unchanged Increase May increase or decrease; depends on the pressure Decrease Remain unchanged Increase May increase or decrease; depends on the pressure Decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal wire of 0.01 m dia and thermal conductivity 200 W/m.K is exposed to a fluid stream with a convective heat transfer coefficient of 100 W/m².K. The Biot number is 3.5 0.025 5.6 0.0035 3.5 0.025 5.6 0.0035 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equation, (NSt x N2/3Pr) = f/2, is the __________ analogy. None of these Colburn Prandtl Reynolds None of these Colburn Prandtl Reynolds ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second. 3 x l05 3 x l08 3 x l010 3 x l012 3 x l05 3 x l08 3 x l010 3 x l012 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film boiling is usually not desired in commercial equipments, because none of the listed here the heat transfer rate is low in view of the large temperature drop. @ it is difficult to maintain it is not economic none of the listed here the heat transfer rate is low in view of the large temperature drop. @ it is difficult to maintain it is not economic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger, one transfer unit means None of these Both A and B A section of the exchanger in which change in temperature of one stream equals the average driving force in the section The size of the exchanger in which heat transfer rate is 1 kcal/hr None of these Both A and B A section of the exchanger in which change in temperature of one stream equals the average driving force in the section The size of the exchanger in which heat transfer rate is 1 kcal/hr ANSWER DOWNLOAD EXAMIANS APP
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