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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

1.5
3.5
0.5
2.5

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Process Equipment and Plant Design
__________ is the determining factor for the number of bubble caps to be used per tray.

Liquid load
Permissible slot velocity
Tray diameter
Vapor load

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Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

0.95 d
0.3 to 0.5 d
0.1 to 0.2 d
0.65 to 0.85 d

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Process Equipment and Plant Design
The dust collection efficiency of electrostatic precipitator increases with increase in the

Gas flow rate
Both A & B
Neither A nor B
Electrode area

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Process Equipment and Plant Design
Thin spherical shells subjected to internal pressure, develop __________ stresses.

Circumferential
Radial
Neither A nor B
Both A & B

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Process Equipment and Plant Design
The maximum liquid gradient over a tray must not exceed

Half the tray spacing
5"
0.5" -1.25"
2"-3.5"

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