Process Equipment and Plant Design Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always More than geometric mean value Less than arithmetic mean value Both B & C More than arithmetic mean value More than geometric mean value Less than arithmetic mean value Both B & C More than arithmetic mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Back-trapping in a distillation column results due to Low gas velocity High gas velocity Excessive liquid gradient over the tray Low reflux ratio Low gas velocity High gas velocity Excessive liquid gradient over the tray Low reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times. Considerably more than 9 About 9 About 3 Considerably less than 9 Considerably more than 9 About 9 About 3 Considerably less than 9 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method Accounts for the enthalpy changes in the process Is more accurate in finding the number of equilibrium stages All of these Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method Accounts for the enthalpy changes in the process Is more accurate in finding the number of equilibrium stages All of these Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency May increase or decrease depending upon the plate spacing Increases Decreases Remains same May increase or decrease depending upon the plate spacing Increases Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ heat exchanger is also known as 'hair pin type' exchanger, Finned Plate type Regenerative Double pipe Finned Plate type Regenerative Double pipe ANSWER DOWNLOAD EXAMIANS APP
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