Heat Transfer A body is called grey if the monochromatic emissivity of the body is Different for all wavelengths Zero Same for all wavelengths Unity Different for all wavelengths Zero Same for all wavelengths Unity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. Wien's displacement Stefan-Boltzman's None of these Planck's Wien's displacement Stefan-Boltzman's None of these Planck's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The interchange factor for radiation heat transfer from surface 'x' to surface 'y' in case of an infinite parallel planes with emis-sivities εx & εy is given by Εx . εy 1/εx + 1/εy Εx + εy (εx + εy)/(εx + εy - εx . εy) Εx . εy 1/εx + 1/εy Εx + εy (εx + εy)/(εx + εy - εx . εy) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The separation of liquid droplets from the vapor is done by a/an __________ , in the evaporators. Compressor Vacuum pump Steam ejector Entrainment separator Compressor Vacuum pump Steam ejector Entrainment separator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporator tubes are generally Vertical Horizontal Inclined Random Vertical Horizontal Inclined Random ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the emissivity of a black body? 0.9 0.5 1 0.9 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
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