In sieve plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally ______________ times the hole diameter to give the required hole area?

Related Mcqs:

Which of the following is the best tube material from thermal conductivity point of view alone ?

A. Aluminium B. Stainless steel C. Copper D. Carbon steel...

Pick out the wrong statement?

A. In practical operation, distillation towers having diameter 3-6 metres equipped with bubble cap (round) size of 15 cms are used B. Height of packing in a packed tower is about 3 times the column diameter for raschig rings and about 5 to 10 times the column diameter for saddle packing C. In a sieve … Pick out the wrong statement?Read More...

The practical representative values of HETP for a number of commercial operations lies within a range of ______________ metre?

A. 0.1-0.2 B. 0.2-0.5 C. 0.4-0.9 D. 1.2-1.5...

In a multipass shell and tube heat exchanger, the shell side cross flow area does not depend upon______________________?

A. Baffle spacing B. Clearance C. Pitch D. None of these...

Larger depth of liquid on the trays of a distillation column_________________?

A. Leads to high tray efficiency B. Results in higher pressure drop per tray C. Both A. & B. D. Neither A. or B....