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 Convection Conduction and convection Radiation Conduction Convection Conduction and convection Radiation Conduction ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity is Used as mathematical model A physical property of the material A dimensionless parameter Function of temperature Used as mathematical model A physical property of the material A dimensionless parameter Function of temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat) S.H/(S.H + L.H) (S.H + L.H) /S.H S.H/(L.H - S.H) (L.H - S.H)/S.H S.H/(S.H + L.H) (S.H + L.H) /S.H S.H/(L.H - S.H) (L.H - S.H)/S.H ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Reynolds number is the ratio of None of these Energy transferred by convection to that by conduction Inertia force to viscous force Kinematic viscosity to thermal diffusivity None of these Energy transferred by convection to that by conduction Inertia force to viscous force Kinematic viscosity to thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The thermal diffusivities for solids are generally Less than those for gases Less than those for liquids More or less same as for liquids and gases More than those for liquids and gases Less than those for gases Less than those for liquids More or less same as for liquids and gases More than those for liquids and gases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer All radiations in a black body are Refracted Absorbed Reflected Transmitted Refracted Absorbed Reflected Transmitted ANSWER DOWNLOAD EXAMIANS APP
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