Heat and Mass Transfer Film coefficient is defined as the ratio of Thermal conductivity to the equivalent thickness of the film of fluid Thickness of film of fluid to the thermal conductivity Thickness of film of fluid to the temperature drop through the films of fluids Temperature drop through the films of fluids to the thickness of film of fluids Thermal conductivity to the equivalent thickness of the film of fluid Thickness of film of fluid to the thermal conductivity Thickness of film of fluid to the temperature drop through the films of fluids Temperature drop through the films of fluids to the thickness of film of fluids ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A perfect black body is one which Absorbs heat radiations of all wave lengths falling on it Is black in colour Reflects all heat Transmits all heat radiations Absorbs heat radiations of all wave lengths falling on it Is black in colour Reflects all heat Transmits all heat radiations ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of energy transferred by convection to that by conduction is called Biot number Stanton number Nusselt number Peclet number Biot number Stanton number Nusselt number Peclet number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of air with rise in temperature Increases Remain constant May increase or decrease depending on temperature Decreases Increases Remain constant May increase or decrease depending on temperature Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Cork is a good insulator because it has Porous body Atoms colliding frequency Free electrons Low density Porous body Atoms colliding frequency Free electrons Low density ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has maximum value of thermal conductivity? Copper Steel Aluminium Brass Copper Steel Aluminium Brass ANSWER DOWNLOAD EXAMIANS APP
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