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Process Equipment and Plant Design

Process Equipment and Plant Design
Le/D for fully open globe value may be around

25
75
300
10

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Process Equipment and Plant Design
__________ of water makes it a widely used coolant in heat exchangers.

Low corrosiveness
Low dirt factor
Low viscosity
High specific heat

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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 = 1.1 t
D = 1.6 √t
D = 1.5 t
D = 3√t

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Process Equipment and Plant Design
Brass valves are usually made for pipe sizes __________ inches.

?2
>2.5
>3.5
?1

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Process Equipment and Plant Design
In which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube?

None of these
Horizontal tube evaporator
Short tube vertical evaporator
Long tube vertical evaporator

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Process Equipment and Plant Design
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Liquid gradient on the tray
Lower static submergence
Small downcomer liquid seal
Lower skirt clearance

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