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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum allowable vapour velocity in a bubble cap tower is determined by the

Vapour density
None of these
Diameter of the column
Entrainment considerations

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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.

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

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Process Equipment and Plant Design
What is the value of 'q' for saturated liquid feed to a distillation column?

1
>1

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Process Equipment and Plant Design
Safety valves are provided in chemical equipments to guard against excessive

Turbulence
Pressure/pressure fluctuation
Noise
Temperature

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Process Equipment and Plant Design
The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter.

0.6-0.8 times
2 ft irrespective of (for column > 3 ft diameter)
Equal to
Twice

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Process Equipment and Plant Design
The dust collection efficiency of a cyclone separator

Is inversely proportional to the mass of the dust particle
Is directly proportional to the radius of the dust particle path
None of these
Decreases with increase in gas flow rate

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