Process Equipment and Plant Design Optimum reflux ratio in a continuous distillation column is determined by the Flooding limit of the column Total cost consideration (fixed cost of the column plus the cooling water & steam cost) None of these Maximum permissible vapour velocity Flooding limit of the column Total cost consideration (fixed cost of the column plus the cooling water & steam cost) None of these Maximum permissible vapour velocity ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ of water makes it a widely used coolant in heat exchangers. Low dirt factor Low corrosiveness Low viscosity High specific heat Low dirt factor Low corrosiveness Low viscosity High specific heat ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers? Equal to tube I.D 6.5 cms Equal to tube O.D 6.5 mm Equal to tube I.D 6.5 cms Equal to tube O.D 6.5 mm ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases. Running cost of steam for reboiler Fixed charges initially Vapour & liquid load both Running cost of cooling water for condenser Running cost of steam for reboiler Fixed charges initially Vapour & liquid load both Running cost of cooling water for condenser ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Vertical condenser is advantageous to the horizontal condenser from operation point of view, when Both the functions of condensation & sub cooling are carried out in a single unit Sub cooling of condensate is desired Only the function of condensation is to be carried out Hydrostatic head is required for refluxing the condensate Both the functions of condensation & sub cooling are carried out in a single unit Sub cooling of condensate is desired Only the function of condensation is to be carried out Hydrostatic head is required for refluxing the condensate ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ heat exchanger is also known as 'hair pin type' exchanger, Plate type Regenerative Finned Double pipe Plate type Regenerative Finned Double pipe ANSWER DOWNLOAD EXAMIANS APP
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