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Process Equipment and Plant Design

Process Equipment and Plant Design
Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.

100
150
10
50

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Process Equipment and Plant Design
Le/D for fully open gate valves would be

Around 7
Both B and C
Much less (say 2% than that for fully open globe valves)
Much more than that for fully open globe valves

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Process Equipment and Plant Design
Baffle width is normally taken as __________ times the tank diameter.

0.4-0.5
0.45-0.6
0.2-0.45
0.1-0.12

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Process Equipment and Plant Design
Poisson's ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson's ratio for structural and pressure vessel steel may be taken as

0.95
0.75
0.3
0.01

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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

0.5 d
1.5 d
D
2.5 d

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Process Equipment and Plant Design
The absorption factor is defined as (where, S₁ = slope of the equilibrium curve, S₂ = slope of the operating line)

S₂/S₁
S₁/S₂
1/S₁.S₂
S₁.S₂

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