Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical? 1 80 1.5 0.5 1 80 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the reciprocal of Mass diffusivity x Momentum diffusivity Thermal diffusivity x Mass diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum Mass diffusivity x Momentum diffusivity Thermal diffusivity x Mass diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff's law is applicable to Only volumes and not to surfaces Monochromatic radiation only Both A and B Total radiation only Only volumes and not to surfaces Monochromatic radiation only Both A and B Total radiation only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a body is equal to its emissivity under thermal equilibrium none of the listed here for circular bodies at a particular temperature under thermal equilibrium none of the listed here for circular bodies at a particular temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the Flexibility possible in the baffle arrangement Less corrosion problems Low pressure drop High heat transfer co-efficient Flexibility possible in the baffle arrangement Less corrosion problems Low pressure drop High heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 2-4 heat exchanger involves Only counter-flow of fluids Smaller pressure drop compared to 1-2 exchanger Both counter and parallel-flow of the fluids Only parallel-flow of fluids Only counter-flow of fluids Smaller pressure drop compared to 1-2 exchanger Both counter and parallel-flow of the fluids Only parallel-flow of fluids ANSWER DOWNLOAD EXAMIANS APP
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