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Process Equipment and Plant Design

Process Equipment and Plant Design
Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as

Δp = G
Δp = 1/G0.6
Δp = G0.5
Δp = G2

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Process Equipment and Plant Design
Height of the flights in the rotary drier is in the range of

0.02 to 0.05 d
0.2 to 0.5 d
0.08 to 0.12 d
0.5 to 0.6 d

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Process Equipment and Plant Design
An underdesigned steam trap will

Back up condensate and cause water hammer in steam line
None of these
Destroy itself of acceleration wear due to rapid recycling
Waste steam

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Process Equipment and Plant Design
Lap joints are preferred for plates having thickness __________ mm.

> 5
< 12.5
43961
> 3

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Process Equipment and Plant Design
Accidents in chemical plants are mostly due to

Failure of equipments
Inadequate equipment design
Improper layout of the equipments
Faulty operating procedures

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Process Equipment and Plant Design
In case of a continuous distillation column, increase in reflux ratio may result in the

Greater cost for the reboiler heat supply
Greater cost for the condenser coolant
All of these
Lower fixed charges for the column

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