Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches. 6 34 12 18 6 34 12 18 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure Decreases Remains same May increase or decrease depending upon the solubility of the gas in the liquid Increases Decreases Remains same May increase or decrease depending upon the solubility of the gas in the liquid Increases 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 Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method All of these Accounts for the enthalpy changes in the process Is more accurate in finding the number of equilibrium stages Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design Irrespective of the shape of the vessel Only if the opening is on a horizontal cylinderical vessel Only if the opening is on a vertical cylinderical vessel Only if the opening is on spherical vessel Irrespective of the shape of the vessel Only if the opening is on a horizontal cylinderical vessel Only if the opening is on a vertical cylinderical vessel Only if the opening is on spherical vessel ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to 10 mm 8 mm 5 mm 6 mm 10 mm 8 mm 5 mm 6 mm ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) More than that for fluid flow Same as that for fluid flow Less than that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) More than that for fluid flow Same as that for fluid flow Less than that for fluid flow ANSWER DOWNLOAD EXAMIANS APP
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