Heat and Mass Transfer The automobile radiator is a heat exchanger of Counter flow type Cross flow type Parallel flow type Regenerator type Counter flow type Cross flow type Parallel flow type Regenerator type ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Prevost theory of heat exchange All bodies above absolute zero emit radiation It is impossible to transfer heat from low temperature source to t high temperature source Heat transfer in most of the cases takes place by combination of conduction, convection and radiation Heat transfer by radiation requires no medium All bodies above absolute zero emit radiation It is impossible to transfer heat from low temperature source to t high temperature source Heat transfer in most of the cases takes place by combination of conduction, convection and radiation Heat transfer by radiation requires no medium ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Reynolds number is the ratio of Inertia force to viscous force None of these Kinematic viscosity to thermal diffusivity Energy transferred by convection to that by conduction Inertia force to viscous force None of these Kinematic viscosity to thermal diffusivity Energy transferred by convection to that by conduction 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 Cork is a good insulator because it has Low density Atoms colliding frequency Porous body Free electrons Low density Atoms colliding frequency Porous body Free electrons ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal diffusivity is m²/hr °C m²/hr kcal/m. hr °C kcal/m² hr m²/hr °C m²/hr kcal/m. hr °C kcal/m² hr ANSWER DOWNLOAD EXAMIANS APP
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