A. Providing a higher skirt clearance or a higher weir
B. Decreasing the number of rows of caps through which the liquid flows or by decreasing the
velocity of liquid flow past the caps or by reducing the distance along the tray through which
the liquid must flow
C. Using split flow, radial flow or cascade flow for column diameter large than 4 ft
D. All A., B. and C.
Process Equipment and Plant Design
Process Equipment and Plant Design
A. 0 to 0.08
B. 0 to 0.8
C. 0 to 1.5
D. 0 to 2.2
A. nth
B. (1/n)th
C. 0.5 nth
D. 1.5 nth
A. Half
B. Three fourth
C. Equal to
D. 1.5 times
A. Split
B. Cross
C. Cascade
D. Reverse
A. 25 and 60
B. 3 and 5
C. 100 and 250
D. 250 and 600
A. Lower limit of vapour velocity
B. Upper limit of the vapour velocity
C. Hole diameter of the sieve tray
D. Height of the plate spacing
A. 5.5
B. 12.5
C. 30.5
D. 45.5
A. 19
B. 38
C. 67
D. 95
A. From rolled strips formed into cylinders and seam-welded
B. By extrusion & casting into static and centrifugal molds
C. By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer
point and further reducing it by rolling gas drawing
D. Both B. and C.
