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Process Equipment and Plant Design

Process Equipment and Plant Design
Baffles may be eliminated for

Low viscosity liquids (< 200 poise)
High viscosity liquids (> 600 poise)
Large diameter tanks
None of these

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Process Equipment and Plant Design
In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area)

Aa = Sa
Aa = 1.5 Sa
Sa = 1.5 Aa
1.2 Aa = 1.2 Sa

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Process Equipment and Plant Design
In chemical process equipments, the conical bottom heads used, usually has an apex angle of

60°
20°
80°
40°

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Process Equipment and Plant Design
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

17-34
52-68
88-105
43929

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Process Equipment and Plant Design
It is not desirable to design a heat exchanger for LMTD correction factor, FT, of less than

0.99
0.55
0.8
0.95

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Process Equipment and Plant Design
The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

Three fourth
One fourth
Half
Equal to

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