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Process Equipment and Plant Design

Process Equipment and Plant Design
Speed of the drum of the rotary vacuum filter normally ranges from __________ rpm.

3 to 8
5 to 7
0.1 to 2
8 to 15

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Process Equipment and Plant Design
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

1/20th
1/50th
1/30th
1/10th

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Process Equipment and Plant Design
A pipe is generally made of circular cross-section, because a circular cross-section has the

Both A & B
Lowest surface area requirement for a given volume
Higher structural strength
None of these

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Process Equipment and Plant Design
LMTD correction factor is used in heat exchanger design for

Double pipe heat exchanger
Multipass shell and tube heat exchanger
Counter flow of hot and cold fluids
Fouling fluids

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Process Equipment and Plant Design
The most common standard size of bubble caps used in industrial operation is

6" dia cap with 4" dia riser
4" dia cap with 8" dia riser
8" dia cap with 1" dia riser
1" dia cap with 0.5" dia riser

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Process Equipment and Plant Design
A claming section before the liquid flows into the downcomer is privided to

Ensure better vapour-liquid contact
Permit release of entrained vapour in the liquid
Reduce the discharge fluctuation
Cool the liquid before it flows down

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