Heat and Mass Transfer The thermal diffusivities for gases are generally More than those for liquids More than those for solids Less than those for liquids Dependent on the viscosity More than those for liquids More than those for solids Less than those for liquids Dependent on the viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The amount of radiation mainly depends upon the Type of surface of the body Temperature of the body All of these Nature of the body Type of surface of the body Temperature of the body All of these Nature of the body 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 Radiation Conduction Forced convection Free convection Radiation Conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Absorptivity of a body will be equal to its emissivity At critical temperature When system is under thermal equilibrium At all temperatures At one particular temperature At critical temperature When system is under thermal equilibrium At all temperatures At one particular temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is known as None of these Radiation Conduction Convection None of these Radiation Conduction Convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The highest thermal diffusivity is of Wood Iron Lead Concrete Wood Iron Lead Concrete ANSWER DOWNLOAD EXAMIANS APP
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