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Process Equipment and Plant Design

Process Equipment and Plant Design
Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter.

1.5 to 2
10 to 15
2.5 to 5
5 to 10

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Process Equipment and Plant Design
With increase in pressure drop (for a given particle size), the dust collection efficiency of a cyclone separator will

Increase or decrease depending on the nature of the dust
Increase
Decrease
Remain unaffected

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Process Equipment and Plant Design
In case of plain carbon steel, butt welded joints are used for shell plate thickness ≤ __________ cms. .

3.8
0.5
6.8
1.2

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Process Equipment and Plant Design
With increase in gas flow rate to fabric surface area ratio (Nm³/hr/m² fabric surface area), the size & the cost of a bag filter

Decreases
Remain unaffected
None of these
Increases

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Process Equipment and Plant Design
The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter.

0.6-0.8 times
Equal to
2 ft irrespective of (for column > 3 ft diameter)
Twice

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Process Equipment and Plant Design
Stage efficiency for packed tower varies with the

Operating pressure and column diameter
All of these
Fluid rates and fluid properties
Type & size of packing

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