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 At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? 1 None of these > 1 < 1 1 None of these > 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal diffusivity of a material Has the unit m² /sec Is the ratio of thermal conductivity to thermal capacity Is defined as K/ρ . Cp All of these Has the unit m² /sec Is the ratio of thermal conductivity to thermal capacity Is defined as K/ρ . Cp All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Temperature profile in steady state heat transfer is parabolic hyperbolic Linear none of the listed here parabolic hyperbolic Linear none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the highest thermal conductivity ? Air Black Water Silver Air Black Water Silver ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For what value of Prandtl number, St = f/2? 1.5 1 2 > 1 1.5 1 2 > 1 ANSWER DOWNLOAD EXAMIANS APP
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