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Process Equipment and Plant Design

Process Equipment and Plant Design
Saddle supports are used for supporting __________ vessels.

Thick walled vertical
Horizontal cylinderical
Thick spherical
Tall vertical

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Process Equipment and Plant Design
In condenser, the cooling water is passed in the tube side in a pass arrangement, because

It reduces heat transfer area
Pressure drop is reduced
It makes condenser compact
More thinner tubes can be used

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

80
180
1
8

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Process Equipment and Plant Design
The dust collection efficiency of a cyclone separator

Decreases with increase in gas flow rate
Is directly proportional to the radius of the dust particle path
Is inversely proportional to the mass of the dust particle
None of these

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Process Equipment and Plant Design
The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.

20-40
43835
100-150
1000-1500

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Process Equipment and Plant Design
Two iron pipes of the same nominal diameter but different schedule numbers will have the same

None of these
Outside diameter
Inside diameter
Wall thickness

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