Heat and Mass Transfer The thermal diffusivities for gases are generally Dependent on the viscosity Less than those for liquids More than those for solids More than those for liquids Dependent on the viscosity Less than those for liquids More than those for solids More than those for liquids ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Film coefficient is defined as Inside diameter of tube Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity Thermal conductivity Equivalent thickness of film Specific heat × Viscosity Film coefficient × Inside diameter Thermal conductivity Equivalent thickness of film Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity Thermal conductivity Equivalent thickness of film Specific heat × Viscosity Film coefficient × Inside diameter Thermal conductivity Equivalent thickness of film ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Log mean temperature difference in case of counter flow compared to parallel flow will be Less Depends on other factors Same More Less Depends on other factors Same More 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 caused by some mechanical means, is known as Forced convection Conduction Free convection Radiation Forced convection Conduction Free convection Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer All radiations in a black body are Absorbed Refracted Transmitted Reflected Absorbed Refracted Transmitted Reflected ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Dalton's law of partial pressures, (where pb = Barometric pressure, pa = Partial pressure of dry air, and pv = Partial pressure of water vapour) Pb = pa × pv Pb = pa/pv Pb = pa + pv Pb = pa - pv Pb = pa × pv Pb = pa/pv Pb = pa + pv Pb = pa - pv ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS