Process Equipment and Plant Design In a vertical short tube evaporator (Calendria type), the Liquor is inside the tube while the steam is outside the tube All of these Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used Liquor is inside the tube while the steam is outside the tube All of these Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Larger depth of liquid on the trays of a distillation column Leads to high tray efficiency Results in higher pressure drop per tray Neither A nor B Both A & B Leads to high tray efficiency Results in higher pressure drop per tray Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids. 38 28 16 19 38 28 16 19 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Bubble cap plate column is A finite stage contactor A differential stage contactor A continuous contactor Used only for distillation, not for absorption A finite stage contactor A differential stage contactor A continuous contactor Used only for distillation, not for absorption ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes None of these Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less Are easier to clean Are less prone to fouling None of these Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less Are easier to clean Are less prone to fouling ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around 100 and 250 3 and 5 25 and 60 250 and 600 100 and 250 3 and 5 25 and 60 250 and 600 ANSWER DOWNLOAD EXAMIANS APP
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