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Process Equipment and Plant Design

Process Equipment and Plant Design
The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.

Four times
Equal to
Half
Twice

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Process Equipment and Plant Design
In case of 1.5" heat exchanger tubes, the inside flow area __________ with decrease in BWG.

Increases
Decreases
Remains same
None of these

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Process Equipment and Plant Design
Which of the following packing materials provides for maximum mass transfer?

Lessig rings
Cross-partition rings
All of these
Raschig rings

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Process Equipment and Plant Design
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

1/5-1/10th
1/10-1/15th
1/20-1/30th
1/2 to 1/4th

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Process Equipment and Plant Design
An underdesigned steam trap will

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

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Process Equipment and Plant Design
Accidents in chemical plants are mostly due to

Faulty operating procedures
Improper layout of the equipments
Failure of equipments
Inadequate equipment design

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