Heat and Mass Transfer Which of the following has least value of conductivity? Plastic Water Air Glass Plastic Water Air Glass ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Cork is a good insulator because it has Porous body Free electrons Low density Atoms colliding frequency Porous body Free electrons Low density Atoms colliding frequency ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat transfer in liquid and gases takes place by Radiation Conduction and convection Convection Conduction Radiation Conduction and convection Convection Conduction 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 Reflectivity Intensity of radiation Emissivity Transmissivity Reflectivity Intensity of radiation Emissivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Wien’s law states that the wave length corresponding to ________ is proportional to the absolute temperature. Maximum energy Both (A) and (B) None of these Minimum energy Maximum energy Both (A) and (B) None of these Minimum energy 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 Free convection Forced convection Conduction Radiation Free convection Forced convection Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
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