Heat and Mass Transfer Unit of thermal conductivity in S.I. units is J/m °K sec J/m² sec W/m °K Option (B) and (C) above J/m °K sec J/m² sec W/m °K Option (B) and (C) above ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer When α is absorptivity, ρ is reflectivity and τ is transmissivity, then for a diathermanous body, α = 1, ρ = 0 and τ = 0 α = 0, ρ = 0 and τ = 1 α + ρ = 1 and τ = 0 α = 0, ρ = 1 and τ = 0 α = 1, ρ = 0 and τ = 0 α = 0, ρ = 0 and τ = 1 α + ρ = 1 and τ = 0 α = 0, ρ = 1 and τ = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Stefan Boltzmann law is applicable for heat transfer by Conduction Convection Conduction and radiation combined Radiation Conduction Convection Conduction and radiation combined Radiation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The emissive power of a body depends upon its All of these Temperature Wave length Physical nature All of these Temperature Wave length Physical nature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A steam pipe is to be lined with two layers of insulating materials of different thermal conductivities. For the minimum heat transfer, One could place either insulation on either side The better insulation must be put inside One should take into account the steam temperature before deciding as to which insulation is put where The better insulation must be put outside One could place either insulation on either side The better insulation must be put inside One should take into account the steam temperature before deciding as to which insulation is put where The better insulation must be put outside ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as U/Cmin Cmin/U U.Cmin U/A.Cmin U/Cmin Cmin/U U.Cmin U/A.Cmin ANSWER DOWNLOAD EXAMIANS APP
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