Heat Transfer Thermal conductivity of a conducting solid material depends upon its None of the listed here both temperature & porosity temperature porosity None of the listed here both temperature & porosity temperature porosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Volume to surface area Surface area to perimeter Perimeter to surface area Surface area to volume Volume to surface area Surface area to perimeter Perimeter to surface area Surface area to volume ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface) K/h0 h0/2K 2K/h0 h0/K K/h0 h0/2K 2K/h0 h0/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equation, Nst = f/2, is the __________ analogy. None of these Reynolds Prandtl Colburn None of these Reynolds Prandtl Colburn ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Molten sodium Dowtherm Air Water Molten sodium Dowtherm Air Water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Grashoff number is defined as the ratio of the buoyancy to inertial forces buoyancy to viscous forces inertial to viscous forces. buoyancy to surface tension forces buoyancy to inertial forces buoyancy to viscous forces inertial to viscous forces. buoyancy to surface tension forces ANSWER DOWNLOAD EXAMIANS APP
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