Heat Transfer A black body does not __________ radiation. Reflect Refract Both B & C Absorb or emit Reflect Refract Both B & C Absorb or emit ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation of steam on cooling surface is promoted When both the steam and the tube are clean An oily surface None of these Only in presence of air When both the steam and the tube are clean An oily surface None of these Only in presence of air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 2-4 heat exchanger involves Only counter-flow of fluids Only parallel-flow of fluids Both counter and parallel-flow of the fluids Smaller pressure drop compared to 1-2 exchanger Only counter-flow of fluids Only parallel-flow of fluids Both counter and parallel-flow of the fluids Smaller pressure drop compared to 1-2 exchanger ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are Re.Gz Nu, Pr Nu, Pr, Re Nu, Gz Re.Gz Nu, Pr Nu, Pr, Re Nu, Gz ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For what value of Prandtl number, St = f/2? 2 1.5 > 1 1 2 1.5 > 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Dowtherm Molten sodium Air Water Dowtherm Molten sodium Air Water ANSWER DOWNLOAD EXAMIANS APP
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