Heat and Mass Transfer The ratio of the energy absorbed by the body to total energy falling on it is called Emissivity Absorptive power Absorptivity Emissive power Emissivity Absorptive power Absorptivity Emissive power ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction gives the heat flow for Nonuniform temperature surfaces Irregular surfaces One dimensional cases only Two dimensional cases only Nonuniform temperature surfaces Irregular surfaces One dimensional cases only Two dimensional cases only ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Planck’s law holds good for polished bodies all coloured bodies black bodies All of these polished bodies all coloured bodies black bodies All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In heat exchangers, degree of approach is defined as the difference between temperatures of Hot medium outlet and cold water inlet Hot medium outlet and cold water outlet Hot medium inlet and outlet Cold water inlet and outlet Hot medium outlet and cold water inlet Hot medium outlet and cold water outlet Hot medium inlet and outlet Cold water inlet and outlet ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Prevost theory of heat exchange Heat transfer by radiation requires no medium Heat transfer in most of the cases takes place by combination of conduction, convection and radiation It is impossible to transfer heat from low temperature source to t high temperature source All bodies above absolute zero emit radiation Heat transfer by radiation requires no medium Heat transfer in most of the cases takes place by combination of conduction, convection and radiation It is impossible to transfer heat from low temperature source to t high temperature source All bodies above absolute zero emit radiation 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 due to difference of density caused by temperature of the particle is known as Free convection Forced convection Conduction Radiation Free convection Forced convection Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
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