Heat and Mass Transfer The concept of overall coefficient of heat transfer is used in heat transfer problems of Convection Conduction and convection Conduction Radiation Convection Conduction and convection Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of the energy absorbed by the body to total energy falling on it is called Emissivity Absorptive power Emissive power Absorptivity Emissivity Absorptive power Emissive power Absorptivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The value of the wave length for maximum emissive power is given by Wine’s law Kirchhoff’s law Planck’s law Stefan’s law Wine’s law Kirchhoff’s law Planck’s law Stefan’s law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer When α is absorptivity, ρ is reflectivity and τ is transmissivity, then for a diathermanous body, α = 1, ρ = 0 and τ = 0 α = 0, ρ = 1 and τ = 0 α = 0, ρ = 0 and τ = 1 α + ρ = 1 and τ = 0 α = 1, ρ = 0 and τ = 0 α = 0, ρ = 1 and τ = 0 α = 0, ρ = 0 and τ = 1 α + ρ = 1 and τ = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Wien's law, the wavelength corresponding to maximum energy is proportion to I² T Absolute temperature (T) F I² T Absolute temperature (T) F ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of surface convection resistance to the internal conduction resistance is known as Grashoff number Stanton number Biot number Prandtl number Grashoff number Stanton number Biot number Prandtl number ANSWER DOWNLOAD EXAMIANS APP