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Process Equipment and Plant Design

Process Equipment and Plant Design
The diameter of a propeller agitator used in agitation tank ranges from __________ percent of the tank diameter and its peripherial speed is normally 300 to 500 metres/minute.

40 to 50
15 to 30
5 to 10
55 to 75

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Process Equipment and Plant Design
Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to

I.D. of the shell
5 cms
40% of the I.D. of the shell
25 cms

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Process Equipment and Plant Design
Which of the following types of reactors is the safest from operation point of view?

Pot type reactor
A liquid phase catalytic reactor
A vapor phase reactor
A liquid phase reactor

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Process Equipment and Plant Design
The main purpose of providing stepping on the trays is to

Decrease the pressure drop
Increase the residence time
Facilitate handling of large flow rate of liquid
Improve the flow condition

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Process Equipment and Plant Design
What is the value of 'q' for saturated vapor feed to a distillation column ?(where q = fraction of the feed stream that is liquid.)

> 1
1

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Process Equipment and Plant Design
A pipe is generally made of circular cross-section, because a circular cross-section has the

Both A & B
Higher structural strength
Lowest surface area requirement for a given volume
None of these

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