Question

In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

a.

2.5

b.

5

c.

12.5

d.

17.5

Answer: (b).5

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. In a multipass shell and tube heat exchanger, the baffles on shell side is primarily provided for

Q. For turbine agitator, the impeller diameter is about

Q. If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

Q. __________ of water makes it a widely used coolant in heat exchangers.

Q. The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

Q. Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

Q. Lug support is meant for supporting __________ vessels.

Q. Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.

Q. Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder

Q. The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called

Q. Liquid gradient over the tray results due to the

Q. The centre to centre distance between two consecutive baffles in a shell and tube heat exchanger is called the baffle pitch or baffle spacing, which is more than 1/5th the I.D. of the shell. Which of the following is not a function of the baffles ?

Q. Bubble cap plate column is

Q. In seive 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.

Q. Pick out the wrong statement.

Q. The force due to wind load acting on a tall vessel depends upon its

Q. Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.

Q. Power required for agitation depends upon the

Q. Tube height in a calendria type evaporator is normally less than __________ metres.

Q. Pick out the wrong statement.

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!