Heat and Mass Transfer Thermal conductivity of glass wool varies from sample to sample because of variation in Density Porosity All of these Composition Density Porosity All of these Composition ANSWER DOWNLOAD EXAMIANS APP
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 Forced convection Convection Radiation Free convection Forced convection Convection Radiation Free convection ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Stefan Boltzmann law, ideal radiators emit radiant energy at a rate proportional to Absolute temperature Square of temperature Fourth power of absolute temperature Fourth power of temperature Absolute temperature Square of temperature Fourth power of absolute temperature Fourth power of temperature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical radius is the insulation radius at which the resistance to heat flow is Maximum Minimum Zero None of these Maximum Minimum Zero None of these 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 caused by some mechanical means, is known as Conduction Forced convection Free convection Radiation Conduction Forced convection Free convection Radiation ANSWER DOWNLOAD EXAMIANS APP
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