Heat and Mass Transfer The rate of energy emission from unit surface area through unit solid angle, along a normal to the surface, is known as Emissivity Reflectivity Intensity of radiation Transmissivity Emissivity Reflectivity Intensity of radiation Transmissivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of air at room temperature in kcal/m hr °C is of the order of 0.02 0.01 0.1 0.002 0.02 0.01 0.1 0.002 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Joule sec is the unit of Thermal conductivity Planck's constant Kinematic viscosity Universal gas constant Thermal conductivity Planck's constant Kinematic viscosity Universal gas constant ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The most commonly used method for the design of duct size is the Dual or double method Static regains method Velocity reduction method Equal friction method Dual or double method Static regains method Velocity reduction method Equal friction method 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 due to difference of density caused by temperature of the particle is known as Forced convection Radiation Conduction Free convection Forced convection Radiation Conduction Free convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Total emissivity of polished silver compared to black body is Very much lower More or less same Higher Same Very much lower More or less same Higher Same ANSWER DOWNLOAD EXAMIANS APP
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