Heat and Mass Transfer Planck’s law holds good for All of these polished bodies black bodies all coloured bodies All of these polished bodies black bodies all coloured bodies ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A perfect black body is one which Reflects all heat Transmits all heat radiations Is black in colour Absorbs heat radiations of all wave lengths falling on it Reflects all heat Transmits all heat radiations Is black in colour Absorbs heat radiations of all wave lengths falling on it ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Log mean temperature difference in case of counter flow compared to parallel flow will be Same Depends on other factors More Less Same Depends on other factors More Less ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as Forced convection Free convection Conduction Radiation Forced convection Free convection Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Emissivity of a white polished body in comparison to a black body is Higher Same Lower Depends upon the shape of body Higher Same Lower Depends upon the shape of body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water at 20°C is of the order of 0.51 0.23 0.42 0.1 0.51 0.23 0.42 0.1 ANSWER DOWNLOAD EXAMIANS APP
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