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Process Equipment and Plant Design

Process Equipment and Plant Design
With increase in gas flow rate to fabric surface area ratio (Nm³/hr/m² fabric surface area), the size & the cost of a bag filter

Decreases
None of these
Remain unaffected
Increases

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Process Equipment and Plant Design
To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of

(1.2)5/3
(1.2)2/3
(1.2)3/2
(1.2)3/5

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Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

0.65 to 0.85 d
0.3 to 0.5 d
0.1 to 0.2 d
0.95 d

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

80
180
8
1

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Process Equipment and Plant Design
The distance between the centre of a rivet hole to the nearest edge of the plate is called

Back pitch
Pitch
None of these
Margin

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Process Equipment and Plant Design
It is not desirable to design a heat exchanger for LMTD correction factor, FT, of less than

0.95
0.55
0.99
0.8

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