Heat Transfer For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is Nu = 0.023 Re0.8 . Pr0.4 Nu = Gz Nu = 2Gz0.5 Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 Nu = Gz Nu = 2Gz0.5 Nu = Gz 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. Backward feed None of these Vacuum High pressure Backward feed None of these Vacuum High pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature) √Δt Δt² Δt Δt³ √Δt Δt² Δt Δt³ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient goes through a minimum continues to increase goes through a maximum. continues to decrease goes through a minimum continues to increase goes through a maximum. continues to decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. Planck's Stefan-Boltzman's None of these Wien's displacement Planck's Stefan-Boltzman's None of these Wien's displacement ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff's law is applicable to Total radiation only Monochromatic radiation only Only volumes and not to surfaces Both A and B Total radiation only Monochromatic radiation only Only volumes and not to surfaces Both A and B ANSWER DOWNLOAD EXAMIANS APP
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