Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer? Lessig rings All of these Raschig rings Cross-partition rings Lessig rings All of these Raschig rings Cross-partition rings ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing. 100-150 1000-1500 20-40 43835 100-150 1000-1500 20-40 43835 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a multiple effect evaporator system having 'n' effects, the amount of water evaporated per unit surface area in approximately equal to __________ times that in a single effect. (1/n)th 0.5 nth 1.5 nth nth (1/n)th 0.5 nth 1.5 nth nth ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Baffle spacing is generally __________ the I.D. of the shell. Not less than one fifth of Not greater than More than Both B and C Not less than one fifth of Not greater than More than Both B and C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches. 12 34 18 6 12 34 18 6 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 0.5 d 2.5 d 1.5 d D 0.5 d 2.5 d 1.5 d D ANSWER DOWNLOAD EXAMIANS APP
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