Heat and Mass Transfer When heat is transferred from one particle of hot body to another by actual motion of the heated particles, it is referred to as heat transfer by Convection Radiation Conduction Conduction and convection Convection Radiation Conduction Conduction and convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A grey body is one whose absorptivity Varies with wavelength of the incident ray Is equal to its emissivity Varies with temperature Does not vary with temperature and. wavelength of the incident ray Varies with wavelength of the incident ray Is equal to its emissivity Varies with temperature Does not vary with temperature and. wavelength of the incident ray ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity of a substance is Inversely proportional to density of substance All of these Inversely proportional to specific heat Directly proportional to the thermal conductivity Inversely proportional to density of substance All of these Inversely proportional to specific heat Directly proportional to the thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Absorptivity of a body will be equal to its emissivity At one particular temperature At all temperatures When system is under thermal equilibrium At critical temperature At one particular temperature At all temperatures When system is under thermal equilibrium At critical temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Wien's law, the wavelength corresponding to maximum energy is proportion to F Absolute temperature (T) T I² F Absolute temperature (T) T I² ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction gives the heat flow for Nonuniform temperature surfaces One dimensional cases only Irregular surfaces Two dimensional cases only Nonuniform temperature surfaces One dimensional cases only Irregular surfaces Two dimensional cases only ANSWER DOWNLOAD EXAMIANS APP
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