Process Equipment and Plant Design
In perforated plate towers, the

Hole sizes may be around 1/8" or 3/16"
Total hole area may be around 6 to 15% of tower cross-sectional area
Pressure drop is less compared is similar bubble cap towers
All of these

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Seamless pipe is made

From rolled strips formed into cylinders and seam-welded
Both B and C
By extrusion & casting into static and centrifugal molds
By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer point and further reducing it by rolling gas drawing

ANSWER DOWNLOAD EXAMIANS APP