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Process Equipment and Plant Design

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

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

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Process Equipment and Plant Design
In chemical process equipments, the conical bottom heads used, usually has an apex angle of

80°
20°
40°
60°

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Process Equipment and Plant Design
Rivets are generally specified by the

None of these
Overall length
Head diameter
Shank diameter

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Process Equipment and Plant Design
A/an __________ is used for changing the direction of a pipeline.

Flange
Union
Elbow
Disc compensator

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Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

10000
5000
3000
1000

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Process Equipment and Plant Design
In perforated plate towers, the

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

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