Heat Transfer A perfect black body is a perfect __________ of radiation emitter Both emitter & absorber none of the listed here absorber emitter Both emitter & absorber none of the listed here absorber ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the geometric mean of two heat transfer areas A₁ and A₂ ? 2 √(A₁ . A₂) √(A₁ + A₂) √(A₁ . A₂) 1/2 √(A₁ . A₂) 2 √(A₁ . A₂) √(A₁ + A₂) √(A₁ . A₂) 1/2 √(A₁ . A₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The actual temperature drop across the heating surface of an evaporator depends on the Pressure difference between the steam chest and the vapor space above the boiling liquid Liquid depth over the heating surface All of these Solution being evaporated Pressure difference between the steam chest and the vapor space above the boiling liquid Liquid depth over the heating surface All of these Solution being evaporated ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashoff number, which is defined as g . β(Ts - T∞) ρ². L³/μ², is proportional to the ratio of buoyancy force to __________ force. Viscous Elastic Inertial None of these Viscous Elastic Inertial None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer It is not preferable to use superheated steam in evaporators, because of its very high temperature none of the listed here high pressure low film co-efficient high temperature none of the listed here high pressure low film co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Double pipe heat exchangers are used when heat transfer area required is very high because it is less costly when heat transfer area required is very low because it occupies less floor area when heat transfer area required is very high because it is less costly when heat transfer area required is very low because it occupies less floor area ANSWER DOWNLOAD EXAMIANS APP
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