Heat and Mass Transfer The automobile radiator is a heat exchanger of Parallel flow type Regenerator type Counter flow type Cross flow type Parallel flow type Regenerator type Counter flow type Cross flow type ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical radius is the insulation radius at which the resistance to heat flow is Zero None of these Maximum Minimum Zero None of these Maximum Minimum ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity of a substance is All of these Inversely proportional to density of substance Inversely proportional to specific heat Directly proportional to the thermal conductivity All of these Inversely proportional to density of substance Inversely proportional to specific heat Directly proportional to the thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction gives the heat flow for Irregular surfaces Two dimensional cases only Nonuniform temperature surfaces One dimensional cases only Irregular surfaces Two dimensional cases only Nonuniform temperature surfaces One dimensional cases only 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 Film coefficient × Inside diameter Thermal conductivity Thermal conductivity Equivalent thickness of film Specific heat × Viscosity Equivalent thickness of film Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity Film coefficient × Inside diameter Thermal conductivity Thermal conductivity Equivalent thickness of film Specific heat × Viscosity Equivalent thickness of film ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The expression Q = ρ AT4 is called Stefan-Boltzmann equation Newton Reichmann equation Fourier equation Joseph-Stefan equation Stefan-Boltzmann equation Newton Reichmann equation Fourier equation Joseph-Stefan equation ANSWER DOWNLOAD EXAMIANS APP
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