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Process Equipment and Plant Design

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

Black
Yellow
Red
Blue

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Process Equipment and Plant Design
The value of fouling factor depends upon the

Velocity of process fluid containing suspended solids
Characteristic of process fluid
Suspended solids in the fluid
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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Process Equipment and Plant Design
Liquid gradient over the tray results due to the

Low gas velocity
Resistance offered to flow of liquids by caps & risers and the flow of gas
Large plate spacing
Large reflux ratio

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Process Equipment and Plant Design
Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

19
16
28
38

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Process Equipment and Plant Design
Filtration rate is affected by the

Area of filtering surface & the viscosity of filtrate
Pressure drop across the cake & filter medium
All of these
Cake & filter medium resistance

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