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Process Equipment and Plant Design

Process Equipment and Plant Design
__________ is the determining factor for the number of bubble caps to be used per tray.

Vapor load
Liquid load
Tray diameter
Permissible slot velocity

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Process Equipment and Plant Design
Value of Peclet number = 0, is the representative of

Eddy diffusivity = 0
Complete back mixing
Plug flow
Laminar flow

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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.

43929
17-34
52-68
88-105

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Process Equipment and Plant Design
A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap.

19
95
76
38

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Process Equipment and Plant Design
The distance between the centre of a rivet hole to the nearest edge of the plate is called

Pitch
Margin
None of these
Back pitch

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Process Equipment and Plant Design
Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

38
28
19
16

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