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Process Equipment and Plant Design

Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

0.4-0.9
1.2-1.5
0.1-0.2
0.2-0.5

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Process Equipment and Plant Design
Oxygen carrying pipelines in chemical industries are coloured with __________ colour.

Blue
Red
Black
Yellow

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Process Equipment and Plant Design
Accidents in chemical plants are mostly due to

Inadequate equipment design
Improper layout of the equipments
Failure of equipments
Faulty operating procedures

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Process Equipment and Plant Design
Which of the following factors determine the amount of entrainment in a distillation column?

All of these
Vapour velocity in the volume between the plates
Depth of liquid above the bubble cap slots
Plate spacing

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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
Total hole area may be around 6 to 15% of tower cross-sectional area
All of these

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Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

80
95
60
45

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