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Process Equipment and Plant Design

Process Equipment and Plant Design
In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as

0.1
0.8
0.25
0.5

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Process Equipment and Plant Design
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise.

1500
1000
300
600

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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
12.5
2.5
17.5

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Process Equipment and Plant Design
Slope of countercurrent flow rotary drier is in the range of __________ meter/metre.

0 to 2.2
0 to 0.08
0 to 1.5
0 to 0.8

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Process Equipment and Plant Design
Nominal size of a pipe is an indication of its __________ diameter.

None of these
Inner
Approximate
Outer

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Process Equipment and Plant Design
The dust collection efficiency of electrostatic precipitator increases with increase in the

Both A & B
Electrode area
Neither A nor B
Gas flow rate

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