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Process Equipment and Plant Design

Process Equipment and Plant Design
Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower.

2.5-3.0
10-12.5
15-20
5-7.5

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Process Equipment and Plant Design
A claming section before the liquid flows into the downcomer is privided to

Reduce the discharge fluctuation
Cool the liquid before it flows down
Permit release of entrained vapour in the liquid
Ensure better vapour-liquid contact

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Process Equipment and Plant Design
Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.

1/8 and 1/64
1/2 and 8
1/64 and 1/8
1/2 and 5

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Process Equipment and Plant Design
Normal screwed fittings are used for pipes upto a diameter of __________ inches.

1.5
7
3
5

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Process Equipment and Plant Design
For identical situation, condensing film coefficient in case of a horizontal condenser is almost __________ the value expected in case of vertical condenser.

Half
Thrice
Five times
Twice

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Process Equipment and Plant Design
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

52-68
88-105
17-34
43929

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