A perforated plate has holes of diameter dn arranged in a pitch ph. Ea – McqOptions

MCQOPTIONS

1.	A perforated plate has holes of diameter dn arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by_______________?
A.	(ph – dh)/ph
B.	(ph – dh . dt/2)/ph
C.	(ph – dt)/ph
D.	(ph – dh)/dh
Answer» D. (ph – dh)/dh

Discussion

No Comment Found

Related MCQs

Width and depth of grooves in the tube sheet holes normally are _______________ inch respectively?
Wind load consideration in the design of a support can be neglected, when the vessel is___________________?
With increase in gas flow rate to fabric surface area ratio (Nm3/hr/m2 fabric surface area), the size & the cost of a bag filter___________________?
With increase in pressure drop (for a given particle size), the dust collection efficiency of a cyclone separator will________________?
With increase in temperature drop (in a shell and tube heat exchanger), the LMTD correction factor, FT_________________?
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the ______________________ decreases?
Which of the following is the best tube material from thermal conductivity point of view alone ?
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation ?
When one of the fluids is highly corrosive and has fouling tendency, it should_____________________?
What is the value of ‘q’ for saturated vapor feed to a distillation column? (where q = fraction of the feed stream that is liquid ?