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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum plate efficiency is achieved in case of __________ flow.

Cascade
Cross
Split
Reverse

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Process Equipment and Plant Design
In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by

(p² - πd²/4)/πd
4(0.86p² - πd²/4)/πd
4(0.86p² - πd²)/πd
(4p² - πd²/4)/πd

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Process Equipment and Plant Design
The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always

< 1
Equal to the order of reaction
1
>1

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Process Equipment and Plant Design
For a 25 mm hole drilled in plates to be rivetted, the shank diameter of the rivet should be __________ mm.

23
26
25
27

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Process Equipment and Plant Design
In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.

5
17.5
12.5
2.5

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Process Equipment and Plant Design
__________ of water makes it a widely used coolant in heat exchangers.

Low dirt factor
Low corrosiveness
High specific heat
Low viscosity

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