Heat and Mass Transfer The highest thermal diffusivity is of Wood Iron Concrete Lead Wood Iron Concrete Lead ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, body will be transparent when (Where a = absorptivity, p = reflectivity, x = transmissivity) X = 0, a + p = 1 P = 0, x= 1, and a = 0 P=1, x = 0, and a = 0 P = 0, x = 0 and a = 1 X = 0, a + p = 1 P = 0, x= 1, and a = 0 P=1, x = 0, and a = 0 P = 0, x = 0 and a = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer All radiations in a black body are Transmitted Reflected Absorbed Refracted Transmitted Reflected Absorbed Refracted ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A designer chooses the values of fluid flow rates and specific heats in such a manner that the heat capacities of the two fluids are equal. A hot fluid enters the counter flow heat exchanger at 100°C and leaves at 60°C. A cold fluid enters the heat exchanger at 40°C. The mean temperature difference between the two fluids is 60°C 40°C 20°C 66.7°C 60°C 40°C 20°C 66.7°C ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of solid metals with rise in temperature normally May increase or decrease depending on temperature Increases Remain constant Decreases May increase or decrease depending on temperature Increases Remain constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical temperature is the temperature Above which a gas may explode Below which a gas is always liquefied Above which a gas will never liquefied Below which a gas does not obey gas laws Above which a gas may explode Below which a gas is always liquefied Above which a gas will never liquefied Below which a gas does not obey gas laws ANSWER DOWNLOAD EXAMIANS APP
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