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Process Equipment and Plant Design

Process Equipment and Plant Design
In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio.

2.7 to 3
1.1 to 1.5
1.6 to 2
2.2 to 2.6

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Process Equipment and Plant Design
__________ heat exchanger is also known as 'hair pin type' exchanger,

Plate type
Finned
Regenerative
Double pipe

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Process Equipment and Plant Design
Speed of the drum of the rotary vacuum filter normally ranges from __________ rpm.

0.1 to 2
8 to 15
3 to 8
5 to 7

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Process Equipment and Plant Design
The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.

20-40
100-150
43835
1000-1500

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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
Twice
Five times
Thrice

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Process Equipment and Plant Design
The value of fouling factor depends upon the

Suspended solids in the fluid
Velocity of process fluid containing suspended solids
Characteristic of process fluid
All of these

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