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Process Equipment and Plant Design

Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

One-fourth of
Less than
2.5 times
1.25-1.50 times

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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

2.5
1.5
0.5
3.5

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Process Equipment and Plant Design
Maximum acceptable total liquid gradient over a tray is about __________ mm.

45.5
30.5
5.5
12.5

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Process Equipment and Plant Design
In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a

Either A or B
Neither A nor B
Clearance of 25-75 mm
Cap pitch of 1.3-2 times the cap diameter

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Process Equipment and Plant Design
In a distillation column, minimum clearance to be maintained betweeen the overflow weir and the last row of the bubble caps is __________ cms.

20
2.5
15
7.5

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Process Equipment and Plant Design
Movement of pipeline caused by thermal expansion is taken care by providing

Change in the shape of pipeline
Changes in its direction
Expansion joint
All of these

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