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Process Equipment and Plant Design

Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the minimum shell thickness for carbon steel (inclusive of corrosion allowance) depends on shell diameter and is in the range of __________ mm.

44058
43962
43895
44183

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Process Equipment and Plant Design
Stage efficiency for packed tower varies with the

Operating pressure and column diameter
Fluid rates and fluid properties
All of these
Type & size of packing

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Process Equipment and Plant Design
Joint efficiency (J) for a seamless pipe is

1.2
0.85
< 0.5
1

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Process Equipment and Plant Design
Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation

Increases economy
Increases capacity
Both B & C
Does not affect the capacity

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Process Equipment and Plant Design
A cylindrical storage tank can have a self supported conical roof,

If the thickness of the roof is more than that of the cylindrical shell
Irrespective of its diameter
If its diameter is less than 15-20metres
If its diameter is more than 50 meters

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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
55 to 75
5 to 10

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