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Process Equipment and Plant Design

Process Equipment and Plant Design
Fresh water carrying pipelines in chemical industries are coloured with __________ color.

Brown
Yellow
Sea green
Red

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Process Equipment and Plant Design
An underdesigned steam trap will

Waste steam
None of these
Destroy itself of acceleration wear due to rapid recycling
Back up condensate and cause water hammer in steam line

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Process Equipment and Plant Design
Normal screwed fittings are used for pipes upto a diameter of __________ inches.

5
7
1.5
3

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Process Equipment and Plant Design
A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap.

95
19
38
76

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Process Equipment and Plant Design
Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around

5 and 10
300 and 500
45 and 75
180 and 300

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the shell side cross flow area does not depend upon

Pitch
Baffle spacing
None of these
Clearance

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