Process Equipment and Plant Design Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower. 5-7.5 10-12.5 15-20 2.5-3.0 5-7.5 10-12.5 15-20 2.5-3.0 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 500 180 and 300 45 and 75 5 and 10 300 and 500 180 and 300 45 and 75 5 and 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for a Tee (used as elbow, entering branch) would be Around 90 Both B and C More than that for Tee (used as elbow, entering run) Less than that for Tee (used as elbow, entering run) Around 90 Both B and C More than that for Tee (used as elbow, entering run) Less than that for Tee (used as elbow, entering run) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In inclined long tube vertical evaporators, the tubes are inclined at an angle of 60° 90° 15° 45° 60° 90° 15° 45° ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers? Equal to tube I.D Equal to tube O.D 6.5 mm 6.5 cms Equal to tube I.D Equal to tube O.D 6.5 mm 6.5 cms ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8"). 1.5 times Equal to Half Three fourth 1.5 times Equal to Half Three fourth ANSWER DOWNLOAD EXAMIANS APP
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