Question

For a better design a manhole, these should be located at every

(a) 10-15 trays

(b) 20-25 trays

(c) 45-50 trays

(d) 50-60 trays

I had been asked this question in examination.

This question is from Comparision of Common Tray Types in section Tray Design and Operation of Distillation Design

Answer 1

Right option is (a) 10-15 trays

To elaborate: Manholes are provided for each 10-15 trays for access of a workman into the column for inspection.