Heat and Mass Transfer Heat flows from one body to other when they have Different temperatures Different atomic structure Different heat contents Different specific heat Different temperatures Different atomic structure Different heat contents Different specific heat ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Free convection flow depends on All of these Coefficient of viscosity Density Gravitational force All of these Coefficient of viscosity Density Gravitational force ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction is valid for Regular surfaces having non-uniform temperature gradients Two dimensional cases only Three dimensional cases only One dimensional cases only Regular surfaces having non-uniform temperature gradients Two dimensional cases only Three dimensional cases only One dimensional cases only ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat) (L.H - S.H)/S.H (S.H + L.H) /S.H S.H/(S.H + L.H) S.H/(L.H - S.H) (L.H - S.H)/S.H (S.H + L.H) /S.H S.H/(S.H + L.H) S.H/(L.H - S.H) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to (Prandtl number) n, where n is equal to -1 =-1/3 =-2/3 1 -1 =-1/3 =-2/3 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The highest thermal diffusivity is of Iron Wood Lead Concrete Iron Wood Lead Concrete ANSWER DOWNLOAD EXAMIANS APP
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