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Process Equipment and Plant Design

Process Equipment and Plant Design
Rivets are generally specified by the

Overall length
None of these
Head diameter
Shank diameter

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Process Equipment and Plant Design
Le/D for a Tee (used as elbow, entering run) would be around

60
5
350
200

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Process Equipment and Plant Design
Le/D for fully open gate valves would be

Much more than that for fully open globe valves
Both B and C
Much less (say 2% than that for fully open globe valves)
Around 7

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Process Equipment and Plant Design
Back-trapping in a distillation column results due to

Low gas velocity
Low reflux ratio
High gas velocity
Excessive liquid gradient over the tray

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Process Equipment and Plant Design
Hold up of material in a operating rotary drier is in the range of

0.25 to 0.50
0.5 to 0.8
0.8 to 0.9
0.05 to 0.15

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Process Equipment and Plant Design
Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter.

0.1 to 0.25
0.65 to 0.80
0.3 to 0.5
0.5 to 0.6

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