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Process Equipment and Plant Design

Process Equipment and Plant Design
The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

< 30
> 7 < 15
> 20 < 50
< 7

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Process Equipment and Plant Design
Back-trapping in a distillation column results due to

Excessive liquid gradient over the tray
High gas velocity
Low reflux ratio
Low gas velocity

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

Regenerative
Plate type
Finned
Double pipe

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Process Equipment and Plant Design
Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter.

1.5 to 2
2.5 to 5
10 to 15
5 to 10

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Process Equipment and Plant Design
The force due to wind load acting on a tall vessel depends upon its

Height
Outside diameter
Shape
All of these

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Process Equipment and Plant Design
The retention time of material in a rotary dryer depends upon its

Slope & length
Flights arrangement
Rpm
All of these

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