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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.

Sea green
Brown
Red
Yellow

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Process Equipment and Plant Design
In chemical process equipments, the conical bottom heads used, usually has an apex angle of

20°
60°
80°
40°

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Process Equipment and Plant Design
Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

Is of high specific gravity
Containing suspended solids flows at low velocity
Is highly viscous
Containing suspended solids flows at high velocity

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Process Equipment and Plant Design
1.2 to 3.8 cms is the value of the

Downcomer liquid seal in case of a balanced tray design
Skirt clearance for bubble caps
Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.)
All of these

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

30.5
12.5
45.5
5.5

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Process Equipment and Plant Design
Minimum tube pitch recommended for shell and tube heat exchangers is about __________ times the outside diameter of the tube.

1.25
1.75
2.5
3.5

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