Heat and Mass Transfer The most commonly used method for the design of duct size is the Dual or double method Static regains method Equal friction method Velocity reduction method Dual or double method Static regains method Equal friction method Velocity reduction method ANSWER DOWNLOAD EXAMIANS APP
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 Conduction Radiation Convection Conduction and convection Conduction Radiation Convection Conduction and convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a Grey body Brilliant white polished body Black body Red hot body Grey body Brilliant white polished body Black body Red hot body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal diffusivity is kcal/m² hr m²/hr °C kcal/m. hr °C m²/hr kcal/m² hr m²/hr °C kcal/m. hr °C m²/hr ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Joule sec is the unit of Kinematic viscosity Thermal conductivity Universal gas constant Planck's constant Kinematic viscosity Thermal conductivity Universal gas constant Planck's constant ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical radius is the insulation radius at which the resistance to heat flow is None of these Zero Minimum Maximum None of these Zero Minimum Maximum ANSWER DOWNLOAD EXAMIANS APP
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