Process Equipment and Plant Design Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer). 650 250 750 450 650 250 750 450 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to D 1.5 d 0.5 d 2.5 d D 1.5 d 0.5 d 2.5 d ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of 10000 5000 1000 3000 10000 5000 1000 3000 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times. Increase by 21.6 None of these Decrease by 22 Increase by 1.8 Increase by 21.6 None of these Decrease by 22 Increase by 1.8 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the None of these Equal sized reactors are the best Smaller reactor should come first Larger reactor should come first None of these Equal sized reactors are the best Smaller reactor should come first Larger reactor should come first ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a given design of bubble cap, the number of bubble caps to be used per tray is set by the Allowable gas velocity through the slots Plate spacing All of these Diameter of the column Allowable gas velocity through the slots Plate spacing All of these Diameter of the column ANSWER DOWNLOAD EXAMIANS APP
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