Heat and Mass Transfer The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit Area Time Thickness Temperature Area Time Thickness Temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction gives the heat flow for Nonuniform temperature surfaces Two dimensional cases only Irregular surfaces One dimensional cases only Nonuniform temperature surfaces Two dimensional cases only Irregular surfaces One dimensional cases only ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer When heat is transferred by molecular collision, it is referred to as heat transfer by Convection Scattering Conduction Radiation Convection Scattering Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Reynolds number (RN) is given by (where h = Film coefficient, l = Linear dimension, V = Velocity of fluid, k = Thermal conductivity, t = Temperature, ρ = Density of fluid, cp = Specific heat at constant pressure, and μ = Coefficient of absolute viscosity) RN = ρ V l /μ RN = μ cp/k RN = hl/k RN = V²/t.cp RN = ρ V l /μ RN = μ cp/k RN = hl/k RN = V²/t.cp ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal conductivity in S.I. units is J/m² sec Option (B) and (C) above W/m °K J/m °K sec J/m² sec Option (B) and (C) above W/m °K J/m °K sec ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Cork is a good insulator because it has Porous body Free electrons Atoms colliding frequency Low density Porous body Free electrons Atoms colliding frequency Low density ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS