Heat Transfer With increase in porosity, the thermal conductivity of a solid substance Decreases Remains unchanged Increases May increase or decrease; depends on the solid Decreases Remains unchanged Increases May increase or decrease; depends on the solid 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 All of these Liquid depth over the heating surface Solution being evaporated Pressure difference between the steam chest and the vapor space above the boiling liquid All of these Liquid depth over the heating surface Solution being evaporated ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation. Lower than Is same as Half Greater than Lower than Is same as Half Greater than ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased. Both A and B Liquor-film co-efficient Velocity of circulation Neither A and B Both A and B Liquor-film co-efficient Velocity of circulation Neither A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) f/2 f/4 f 2f f/2 f/4 f 2f ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) (ΔT)⁴ (ΔT)³ √(ΔT) (ΔT)² (ΔT)⁴ (ΔT)³ √(ΔT) (ΔT)² ANSWER DOWNLOAD EXAMIANS APP
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