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Process Equipment and Plant Design

Process Equipment and Plant Design
In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around

3.5
1.5
0.5
2.5

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Process Equipment and Plant Design
In perforated plate towers, the

Total hole area may be around 6 to 15% of tower cross-sectional area
Pressure drop is less compared is similar bubble cap towers
Hole sizes may be around 1/8" or 3/16"
All of these

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Process Equipment and Plant Design
The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from

3 to 5
2 to 3
6 to 12
4 to 8

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Process Equipment and Plant Design
The wall thickness for a large high pressure pipeline is determined by the consideration of the

Forces exerted by static and dynamic action at bends
Circumferential pipewall tension
Axial tensile stress in the pipe
Temperature stresses

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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
The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

< 30
> 7 < 15
< 7
> 20 < 50

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