Heat and Mass Transfer Which of the following is expected to have highest thermal conductivity? Solid ice Melting ice Water Steam Solid ice Melting ice Water Steam 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 =-2/3 -1 =-1/3 1 =-2/3 -1 =-1/3 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction is valid for Three dimensional cases only Regular surfaces having non-uniform temperature gradients One dimensional cases only Two dimensional cases only Three dimensional cases only Regular surfaces having non-uniform temperature gradients One dimensional cases only Two dimensional cases only ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Log mean temperature difference in case of counter flow compared to parallel flow will be Less Same More Depends on other factors Less Same More Depends on other factors ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Dalton's law of partial pressures, (where pb = Barometric pressure, pa = Partial pressure of dry air, and pv = Partial pressure of water vapour) Pb = pa - pv Pb = pa × pv Pb = pa/pv Pb = pa + pv Pb = pa - pv Pb = pa × pv Pb = pa/pv Pb = pa + pv ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Wien’s law states that the wave length corresponding to ________ is proportional to the absolute temperature. None of these Maximum energy Minimum energy Both (A) and (B) None of these Maximum energy Minimum energy Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
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