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Process Equipment and Plant Design

Process Equipment and Plant Design
In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as

0.8
0.25
0.5
0.1

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

Both B and C
Rivets
Bolts
A hold down bar

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Process Equipment and Plant Design
Lug support is

All of these
Same as bracket support
The most suitable for thick vertical vessel
Provided usually for vessels of much smaller height than skirt supported vessels

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Process Equipment and Plant Design
Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

19
16
28
38

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Process Equipment and Plant Design
__________ shapedroof is the most commonly used roof for cylinderical storage tanks.

Conical
Dome
Flat
Umbrella

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

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

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