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Process Equipment and Plant Design

Process Equipment and Plant Design
Which of the following is the best tube material from thermal conductivity point of view alone?

Aluminium
Stainless steel
Carbon steel
Copper

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Process Equipment and Plant Design
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as

D = 1.5 t
D = 1.1 t
D = 1.6 √t
D = 3√t

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Process Equipment and Plant Design
In perforated plate towers, the

Total hole area may be around 6 to 15% of tower cross-sectional area
Pressure drop is less compared is similar bubble cap towers
Hole sizes may be around 1/8" or 3/16"
All of these

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Process Equipment and Plant Design
A pressure vessel is said to be made of 'thick' shell, if the ratio of its diameter to wall thickness is

10
20
10
20

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Process Equipment and Plant Design
For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is

(d1 + d2)/d2
D2/(d1 + d2)
(d1 + d2)/d1
D1/(d1 + d2)

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Process Equipment and Plant Design
__________ strain is measured using a 'strain rosetter'.

None of these
Volumetric
Shear
Linear

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