Process Equipment and Plant Design In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio. 2.7 to 3 2.2 to 2.6 1.6 to 2 1.1 to 1.5 2.7 to 3 2.2 to 2.6 1.6 to 2 1.1 to 1.5 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 6 mm 5 mm 10 mm 8 mm 6 mm 5 mm ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Minimum tube pitch recommended for shell and tube heat exchangers is about __________ times the outside diameter of the tube. 1.75 1.25 3.5 2.5 1.75 1.25 3.5 2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.) L/Z.H.ρ Z.H.ρ/L Z.H/L.ρ H.ρ/L L/Z.H.ρ Z.H.ρ/L Z.H/L.ρ H.ρ/L ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is 0.5 1.25 0.75 0.25 0.5 1.25 0.75 0.25 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a distillation column, minimum clearance to be maintained betweeen the overflow weir and the last row of the bubble caps is __________ cms. 7.5 15 2.5 20 7.5 15 2.5 20 ANSWER DOWNLOAD EXAMIANS APP
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