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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.

Tray diameter
Liquid load
Permissible slot velocity
Vapor load

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Process Equipment and Plant Design
An underdesigned steam trap will

Back up condensate and cause water hammer in steam line
Destroy itself of acceleration wear due to rapid recycling
None of these
Waste steam

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Process Equipment and Plant Design
A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to

6 mm
5 mm
8 mm
10 mm

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Process Equipment and Plant Design
In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed __________ of the column diameter.

l/50th
l/15th
l/30th
l/5th

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Process Equipment and Plant Design
Normal screwed fittings are used for pipes upto a diameter of __________ inches.

1.5
3
7
5

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Process Equipment and Plant Design
If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of

D/2 or minimum 2" to 5D
D/5 or minimum 2" to 5D
D/5 or minimum 2" to D
None of these

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