Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Vent the non-condensible gases Create vacuum Regulate the vapor flow Arrest the entrained liquid Vent the non-condensible gases Create vacuum Regulate the vapor flow Arrest the entrained liquid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical? 0.5 80 1.5 1 0.5 80 1.5 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Forced circulation evaporators are normally used for concentrating liquids having High viscosity Both A & B Neither A nor B Scaling characteristics High viscosity Both A & B Neither A nor B Scaling characteristics ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it None of these Decreases the pressure drop Decreases the outlet temperature of cooling medium Increases the overall heat transfer coefficient None of these Decreases the pressure drop Decreases the outlet temperature of cooling medium Increases the overall heat transfer coefficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, The relationship is not generalised The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The temperature drops in the two fluids and the wall are proportional to individual resistances The relationship is not generalised The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The temperature drops in the two fluids and the wall are proportional to individual resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) f/2 2f f/4 f f/2 2f f/4 f ANSWER DOWNLOAD EXAMIANS APP
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