Process Equipment and Plant Design Value of Peclet number = ∞, is the representative of Plug flow Complete back mixing Eddy diffusivity = 0 Laminar flow Plug flow Complete back mixing Eddy diffusivity = 0 Laminar flow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always < 1 >1 1 Equal to the order of reaction < 1 >1 1 Equal to the order of reaction ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area) Sa = 1.5 Aa Aa = 1.5 Sa Aa = Sa 1.2 Aa = 1.2 Sa Sa = 1.5 Aa Aa = 1.5 Sa Aa = Sa 1.2 Aa = 1.2 Sa 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 H.ρ/L Z.H.ρ/L Z.H/L.ρ L/Z.H.ρ H.ρ/L Z.H.ρ/L Z.H/L.ρ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around 25 and 60 250 and 600 3 and 5 100 and 250 25 and 60 250 and 600 3 and 5 100 and 250 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of a long tube vertical evaporator. Tube dia is 3-6 cms, while tube length in 3-6 metres Liquor level is maintained at l/3rd to 1/2 of the height of the tube None of these Steam is fed to the shell, whereas the liquor is filled inside the tube Tube dia is 3-6 cms, while tube length in 3-6 metres Liquor level is maintained at l/3rd to 1/2 of the height of the tube None of these Steam is fed to the shell, whereas the liquor is filled inside the tube ANSWER DOWNLOAD EXAMIANS APP
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