In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

Process Equipment and Plant Design
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

1/2 to 1/4th

1/5-1/10th

1/20-1/30th

1/10-1/15th

1/2 to 1/4th

1/5-1/10th

1/20-1/30th

1/10-1/15th

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Process Equipment and Plant Design
Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure?

At the mid thickness of the cylindrical wall

None of these

At the inner surface

At the outer surface

At the mid thickness of the cylindrical wall

None of these

At the inner surface

At the outer surface

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Process Equipment and Plant Design
1.2 to 3.8 cms is the value of the

All of these

Skirt clearance for bubble caps

Downcomer liquid seal in case of a balanced tray design

Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.)

All of these

Skirt clearance for bubble caps

Downcomer liquid seal in case of a balanced tray design

Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.)

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

None of these

Is inversely proportional to the mass of the dust particle

Decreases with increase in gas flow rate

Is directly proportional to the radius of the dust particle path

None of these

Is inversely proportional to the mass of the dust particle

Decreases with increase in gas flow rate

Is directly proportional to the radius of the dust particle path

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Process Equipment and Plant Design
Generally, elliptical dished heads

All of these

Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m²

Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D

Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter

All of these

Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m²

Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D

Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter

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Process Equipment and Plant Design
In the agitators, the power required will be changed with the increase of diameter of agitator (D) as

D⁵

D

D²

D⁹

D⁵

D

D²

D⁹

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Process Equipment and Plant Design

Process Equipment and Plant Design In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

Process Equipment and Plant Design Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure?

Process Equipment and Plant Design 1.2 to 3.8 cms is the value of the

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

Process Equipment and Plant Design Generally, elliptical dished heads

Process Equipment and Plant Design In the agitators, the power required will be changed with the increase of diameter of agitator (D) as

Process Equipment and Plant Design
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

Process Equipment and Plant Design
Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure?

Process Equipment and Plant Design
1.2 to 3.8 cms is the value of the

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

Process Equipment and Plant Design
Generally, elliptical dished heads

Process Equipment and Plant Design
In the agitators, the power required will be changed with the increase of diameter of agitator (D) as