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Process Equipment and Plant Design

Process Equipment and Plant Design
In packed towers provided with saddle packing, liquid redistributors are positioned at every __________ times column diameter or 6 metres whichever is less.

44119
20-25
43864
43959

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Process Equipment and Plant Design
Shortest distance between two tubes is

Called tube clearance
More in case of triangular pitch as compared to square pitch of tube layout
None of these
Called tube pitch

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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
1/10-1/15th
1/20-1/30th

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Process Equipment and Plant Design
Vertical vessels are not supported by

Skirts
Saddles
Brackets
Columns

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Process Equipment and Plant Design
Poisson's ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson's ratio for structural and pressure vessel steel may be taken as

0.01
0.3
0.75
0.95

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

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

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