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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

0.5
1.5
3.5
2.5

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Process Equipment and Plant Design
Le/D for a Tee (used as elbow, entering run) would be around

5
200
350
60

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Process Equipment and Plant Design
What is the slope of the operating line in the stripping section of a distillation column?

?
> 1
< 1

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Process Equipment and Plant Design
Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from

1.5-2.5
7.5-10.0
3.5-5.5
44119

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Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

35
5
55
20

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Process Equipment and Plant Design
Which of the following lengths of heat exchanger tubes are normally not used in practice?

10 metres
2.5 metres
0.5 metre
6 metres

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