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Process Equipment and Plant Design

Process Equipment and Plant Design
__________ shapedroof is the most commonly used roof for cylinderical storage tanks.

Umbrella
Dome
Flat
Conical

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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

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

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Process Equipment and Plant Design
Hole diameter of the seive trays in the distillation column ranges from __________ mm.

3 to 12.5
12.5 to 18.5
L to 3
4 to 8

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Process Equipment and Plant Design
Two iron pipes of the same nominal diameter but different schedule numbers will have the same

Inside diameter
None of these
Wall thickness
Outside diameter

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Process Equipment and Plant Design
In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

2.5 to 4.0
10 to 15
0.5 to 1.5
5 to 10

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Process Equipment and Plant Design
A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law.

None of these
No
Positive
Negative

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