Heat and Mass Transfer Two plates spaced 150 mm apart are maintained at 1000°C and 70°C. The heat transfer will take place mainly by Radiation Forced convection Free convection Convection Radiation Forced convection Free convection Convection ANSWER DOWNLOAD EXAMIANS APP
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 Transmissivity Intensity of radiation Emissivity Reflectivity Transmissivity Intensity of radiation Emissivity Reflectivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The concept of overall coefficient of heat transfer is used in heat transfer problems of Conduction Conduction and convection Radiation Convection Conduction Conduction and convection Radiation Convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical temperature is the temperature Below which a gas is always liquefied Below which a gas does not obey gas laws Above which a gas will never liquefied Above which a gas may explode Below which a gas is always liquefied Below which a gas does not obey gas laws Above which a gas will never liquefied Above which a gas may explode 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 Red hot body Grey body Black body Brilliant white polished body Red hot body Grey body Black body Brilliant white polished body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has least value of conductivity? Air Glass Plastic Water Air Glass Plastic Water ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS