Heat and Mass Transfer Depending on the radiating properties, a body will be opaque when X = 0, a + p = 1 P = 0, x = 0 and a = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 X = 0, a + p = 1 P = 0, x = 0 and a = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as Planck's law Stefan's law Kirchhoff's law Wien's law Planck's law Stefan's law Kirchhoff's law Wien's law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In heat exchangers, degree of approach is defined as the difference between temperatures of Hot medium inlet and outlet Cold water inlet and outlet Hot medium outlet and cold water inlet Hot medium outlet and cold water outlet Hot medium inlet and outlet Cold water inlet and outlet Hot medium outlet and cold water inlet Hot medium outlet and cold water outlet ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A non-dimensional number generally associated with natural convection heat transfer is Nusselt number Grashoff number Weber number Prandtl number Nusselt number Grashoff number Weber number Prandtl number 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. Directly proportional to Inversely proportional to Equal to None of these Directly proportional to Inversely proportional to Equal to None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a Brilliant white polished body Black body Red hot body Grey body Brilliant white polished body Black body Red hot body Grey body ANSWER DOWNLOAD EXAMIANS APP
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