Heat Transfer A sphere of radius 'R₁' is enclosed in a sphere of radius 'R₂'. The view (or shape) factor for radiative heat transfer of the outer sphere with respect to the inner sphere is (R₁/R₂)2 1 R₂/(R₁+R₂) (R₁/R₂)2 1 R₂/(R₁+R₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If heat transfer rate varies with the time, it is termed as Steady state conduction Forced convection Monochromatic radiation None of these Steady state conduction Forced convection Monochromatic radiation None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation accounts for Investment economy Lower operating costs Steam economy None of these Investment economy Lower operating costs Steam economy None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate per unit area is called heat flux thermal diffusivity heat transfer co-efficient thermal conductivity heat flux thermal diffusivity heat transfer co-efficient thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius 'r' of insulation on a pipe is given by r = 2k/h r = k/h r = h/k r = k/2h r = 2k/h r = k/h r = h/k r = k/2h ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number for most of dry gases is about 150 0.001 0.72 70 150 0.001 0.72 70 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS