Heat Transfer The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium. This is __________ law. Stefan-Boltzman Wien's displacement Planck's Kirchoffs Stefan-Boltzman Wien's displacement Planck's Kirchoffs ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface. Pool Local Nucleate Saturated Pool Local Nucleate Saturated ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A black body does not __________ radiation. Refract Absorb or emit Both B & C Reflect Refract Absorb or emit Both B & C Reflect ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a body is equal to its emissivity under thermal equilibrium none of the listed here at a particular temperature for circular bodies under thermal equilibrium none of the listed here at a particular temperature for circular bodies ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum heat transfer rate is achieved in __________ flow. Counter-current Laminar Co-current Turbulent Counter-current Laminar Co-current Turbulent 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 (εx + εy)/(εx + εy - εx . εy) 1/εx + 1/εy Εx . εy Εx + εy (εx + εy)/(εx + εy - εx . εy) 1/εx + 1/εy Εx . εy ANSWER DOWNLOAD EXAMIANS APP
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