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Process Equipment and Plant Design

Process Equipment and Plant Design
The dust collection efficiency of electrostatic precipitator increases with increase in the

Electrode area
Neither A nor B
Gas flow rate
Both A & B

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Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Equal sized reactors are the best
Larger reactor should come first
Smaller reactor should come first
None of these

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Process Equipment and Plant Design
An adequate clearance between the tray and the shell wall of a distillation column is provided to

Drain the liquid from the tray when the unit is not in operation
Allow for thermal expansion and facilitate installation
Avoid back-trapping
None of these

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Process Equipment and Plant Design
Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.

150
10
100
50

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Process Equipment and Plant Design
The necessary wall thickness for a metallic storage vessel is a function of the

Operating pressure and welding/joint efficiency
Ultimate tensile strength (or yield point) of the material and operating temperature
Diameter of the vessel
All of these

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

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

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