Heat Transfer As per Kirchoffs law, the ratio of the total radiating power to the absorptivity of a body depends on the none of the listed here temperature of the body only nature of material of body wavelength of monochromatic radiation none of the listed here temperature of the body only nature of material of body wavelength of monochromatic radiation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In natural convection heat transfer, the correlating parameter is the Graetz number Eckert number Bond number Grashoff number Graetz number Eckert number Bond number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat exchangers operating, when the asymptotic range is reached, Results in abruptly increased velocity Results in making part of the heating surface inactive None of these Provide very large heat transfer co-efficient Results in abruptly increased velocity Results in making part of the heating surface inactive None of these Provide very large heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. High pressure None of these Vacuum Backward feed High pressure None of these Vacuum Backward feed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 'Duhring's plot' is of use in Absorption Evaporation Leaching Extractive distillation Absorption Evaporation Leaching Extractive distillation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In the equation Q = UAΔt; Δt is Logarithmic mean temperature difference The difference of average bulk temperatures of hot and cold fluids Geometric mean temperature difference Arithmetic mean temperature difference Logarithmic mean temperature difference The difference of average bulk temperatures of hot and cold fluids Geometric mean temperature difference Arithmetic mean temperature difference ANSWER DOWNLOAD EXAMIANS APP
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