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Process Equipment and Plant Design

Process Equipment and Plant Design
Movement of pipeline caused by thermal expansion is taken care by providing

Changes in its direction
Change in the shape of pipeline
Expansion joint
All of these

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Process Equipment and Plant Design
In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as

0.1
0.8
0.25
0.5

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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

0.75
0.01
0.3
0.95

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Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

(ph - dh)/dh
(ph - dt)/ph
(ph - dh . dt/2)/ph
(ph - dh)/ph

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Process Equipment and Plant Design
The normal range of velocity of water in pipes is __________ m/sec.

0.1-0.5
10-50
15-30
1-2

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Process Equipment and Plant Design
Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is

More
Cither A or B; depends upon the I.D. of the pipe
Same
Less

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