Heat and Mass Transfer The value of Prandtl number for air is about 1.7 0.7 0.3 0.1 1.7 0.7 0.3 0.1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The most commonly used method for the design of duct size is the Equal friction method Velocity reduction method Static regains method Dual or double method Equal friction method Velocity reduction method Static regains method Dual or double method ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The expression Q = ρ AT4 is called Newton Reichmann equation Joseph-Stefan equation Stefan-Boltzmann equation Fourier equation Newton Reichmann equation Joseph-Stefan equation Stefan-Boltzmann equation Fourier equation 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 66.7°C 20°C 60°C 40°C 66.7°C 20°C ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The natural convection air cooled condensers are used in Water coolers All of these Domestic refrigerators Room air conditioners Water coolers All of these Domestic refrigerators Room air conditioners ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer All radiations in a black body are Reflected Refracted Transmitted Absorbed Reflected Refracted Transmitted Absorbed ANSWER DOWNLOAD EXAMIANS APP
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