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Process Equipment and Plant Design

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

None of these
Negative
Positive
No

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Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

20
55
5
35

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

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

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Process Equipment and Plant Design
A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is

Bending
Elongation
Deformation
Shear

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Process Equipment and Plant Design
Liquid gradient over the tray results due to the

Large plate spacing
Resistance offered to flow of liquids by caps & risers and the flow of gas
Large reflux ratio
Low gas velocity

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Process Equipment and Plant Design
Shortest distance between two tubes is

More in case of triangular pitch as compared to square pitch of tube layout
Called tube clearance
None of these
Called tube pitch

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