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.

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.

45

95

80

60

45

95

80

60

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Process Equipment and Plant Design
The function of manholes provided in the shell of a distillation column is to

Keep a check on the liquid gradient over the plate by direct visual observation

Guard against foaming & entrainment by dumping antifoaming agent through it

Give access to the individual trays for cleaning, maintenance and installation

All of these

Keep a check on the liquid gradient over the plate by direct visual observation

Guard against foaming & entrainment by dumping antifoaming agent through it

Give access to the individual trays for cleaning, maintenance and installation

All of these

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

Gas flow rate

Neither A nor B

Both A & B

Electrode area

Gas flow rate

Neither A nor B

Both A & B

Electrode area

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Process Equipment and Plant Design
In a bag filter, the pressure drop increases directly as the

Density of the gas, but is independent of the viscosity of the gas

Viscosity of the gas and inversely as density of the gas

None of these

Density of the gas and inversely as viscosity of the gas

Density of the gas, but is independent of the viscosity of the gas

Viscosity of the gas and inversely as density of the gas

None of these

Density of the gas and inversely as viscosity of the gas

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Process Equipment and Plant Design
Which of the following packing materials provides for maximum mass transfer?

Cross-partition rings

Raschig rings

Lessig rings

All of these

Cross-partition rings

Raschig rings

Lessig rings

All of these

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Process Equipment and Plant Design
Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around

3 and 5

25 and 60

100 and 250

250 and 600

3 and 5

25 and 60

100 and 250

250 and 600

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Process Equipment and Plant Design

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.

Process Equipment and Plant Design The function of manholes provided in the shell of a distillation column is to

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

Process Equipment and Plant Design In a bag filter, the pressure drop increases directly as the

Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer?

Process Equipment and Plant Design Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around

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.

Process Equipment and Plant Design
The function of manholes provided in the shell of a distillation column is to

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

Process Equipment and Plant Design
In a bag filter, the pressure drop increases directly as the

Process Equipment and Plant Design
Which of the following packing materials provides for maximum mass transfer?

Process Equipment and Plant Design
Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around