Heat and Mass Transfer The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as Wien's law Stefan's law Kirchhoff's law Planck's law Wien's law Stefan's law Kirchhoff's law Planck's law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to Biot number Peclet number Stanton number Grashoff number Biot number Peclet number Stanton number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Sensible heat is the heat required to Change liquid into vapour Convert water into steam and superheat it Change vapour into liquid Increase the temperature of a liquid of vapour Change liquid into vapour Convert water into steam and superheat it Change vapour into liquid Increase the temperature of a liquid of vapour ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Film coefficient is defined as the ratio of 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 Thermal conductivity to the equivalent thickness of the film of fluid ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer When heat is transferred from hot body to cold body, in a straight line, without affecting the intervening medium, it is referred as heat transfer by Conduction and convection Radiation Convection Conduction Conduction and convection Radiation Convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. Remain same Increases May increase or decrease depending upon temperature Decreases Remain same Increases May increase or decrease depending upon temperature Decreases ANSWER DOWNLOAD EXAMIANS APP
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