Heat and Mass Transfer The ratio of surface convection resistance to the internal conduction resistance is known as Biot number Prandtl number Stanton number Grashoff number Biot number Prandtl number Stanton number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Total emissivity of polished silver compared to black body is More or less same Very much lower Same Higher More or less same Very much lower Same Higher ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction gives the heat flow for Nonuniform temperature surfaces Irregular surfaces Two dimensional cases only One dimensional cases only Nonuniform temperature surfaces Irregular surfaces Two dimensional cases only One dimensional cases only ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is smallest in Gases Liquids None of these Solids Gases Liquids None of these Solids ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The total radiation from a black body per second per unit area is ________ fourth power of the absolute temperature. This statement is known as Stefan Boltzmann law. Inversely proportional to Directly proportional to None of these Equal to Inversely proportional to Directly proportional to None of these Equal to ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The value of the wavelength for maximum emissive power is given by Planck's law Wien’s law Fourier's law Stefan's law Planck's law Wien’s law Fourier's law Stefan's law ANSWER DOWNLOAD EXAMIANS APP
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