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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
__________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).

Ellipsoidal
Hemispherical
Dished
Conical

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Process Equipment and Plant Design
In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

12.5
2.5
17.5
5

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Process Equipment and Plant Design
Larger depth of liquid on the trays of a distillation column

Leads to high tray efficiency
Results in higher pressure drop per tray
Neither A nor B
Both A & B

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Process Equipment and Plant Design
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise.

1500
1000
600
300

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Process Equipment and Plant Design
The units of Young's modulus of elasticity and __________ are the same.

None of these
Modular ratio
Strain
Stress

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