Process Equipment and Plant Design In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds. 12.5 2.5 5 17.5 12.5 2.5 5 17.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design It is not desirable to design a heat exchanger for LMTD correction factor, FT, of less than 0.95 0.8 0.55 0.99 0.95 0.8 0.55 0.99 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Maximum allowable vapour velocity in a bubble cap tower is determined by the Entrainment considerations Diameter of the column Vapour density None of these Entrainment considerations Diameter of the column Vapour density None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The slope of operating line in the rectifying section of a distillation column is unity, if the reflux ratio is ∞ 1 Minimum 0 ∞ 1 Minimum 0 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around 300 and 500 45 and 75 180 and 300 5 and 10 300 and 500 45 and 75 180 and 300 5 and 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The thickness of heat transfer plates used in the plate type heat exchanger ranges from __________ mm, pressed in a single piece provided with grooves & corrugations. 44055 1.25 to 3.125 0.3 to 0.8 3.5 to 7.0 44055 1.25 to 3.125 0.3 to 0.8 3.5 to 7.0 ANSWER DOWNLOAD EXAMIANS APP
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