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Process Equipment and Plant Design

Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

D
0.5 d
2.5 d
1.5 d

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Process Equipment and Plant Design
Needle valves are generally not used for

Very large diameter pipes
Smaller sizes of pipe
Very accurate flow control
High pressure throttling service

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Process Equipment and Plant Design
__________ liquor is best handled in a long tube vertical evaporator.

Scaling
Viscous
Foamy
Salting

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Process Equipment and Plant Design
In a __________ rivetted joint, the rivets in the various rows are opposite to each other.

Chain
Zig-zag
Diamond
None of these

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Process Equipment and Plant Design
Scale up problem in design based on the similarity concept takes into account __________ similarity.

Geometrical
Dynamic
Kinematic
All of these

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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 = 3√t
D = 1.1 t
D = 1.6 √t
D = 1.5 t

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