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Process Equipment and Plant Design

Process Equipment and Plant Design
for couplings and unions would be

Negligible
350
60
200

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Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

95
80
45
60

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Process Equipment and Plant Design
An adequate clearance between the tray and the shell wall of a distillation column is provided to

Avoid back-trapping
None of these
Allow for thermal expansion and facilitate installation
Drain the liquid from the tray when the unit is not in operation

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Process Equipment and Plant Design
The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is

pd/8t
pd/2t
pd/t
pd/4t

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Process Equipment and Plant Design
The operating pressure drop range in a bag filter is about __________ mm water gauge.

1500-2500
50-150
500-1500
43961

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Process Equipment and Plant Design
In distillation columns, bubble caps are held in place over trays by

Rivets
Both B and C
A hold down bar
Bolts

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