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Process Equipment and Plant Design

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

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

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Process Equipment and Plant Design
The shell side pressure drop in a shell and tube heat exchanger is maximum for __________ baffle.

Segmental
Orifice
Disk and ring
Independent of the type of

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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 more than 50 meters
If its diameter is less than 15-20metres

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Process Equipment and Plant Design
Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around

300 and 500
5 and 10
45 and 75
180 and 300

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Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

2.5 times
One-fourth of
Less than
1.25-1.50 times

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Process Equipment and Plant Design
for couplings and unions would be

200
60
Negligible
350

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