Process Equipment and Plant Design The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is > 7 < 15 > 20 < 50 < 7 < 30 > 7 < 15 > 20 < 50 < 7 < 30 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a multipass shell and tube heat exchanger, the baffles on shell side is primarily provided for Increasing pressure drop Fixing the tubes Reducing scale deposition Creating turbulence Increasing pressure drop Fixing the tubes Reducing scale deposition Creating turbulence 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 180 and 300 300 and 500 45 and 75 5 and 10 180 and 300 300 and 500 45 and 75 5 and 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm. Equal to One fourth Half Three fourth Equal to One fourth Half Three fourth ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in pressure drop (for a given particle size), the dust collection efficiency of a cyclone separator will Remain unaffected Increase or decrease depending on the nature of the dust Decrease Increase Remain unaffected Increase or decrease depending on the nature of the dust Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ closure is the weakest enclosure for cylindrical vessels. Hemispherical Torispherical Conical or flat plate Elliptical Hemispherical Torispherical Conical or flat plate Elliptical ANSWER DOWNLOAD EXAMIANS APP
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