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Process Equipment and Plant Design

Process Equipment and Plant Design
The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the __________ stress.

Breaking
None of these
Ultimate
Yield point

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Process Equipment and Plant Design
Theoretically calculated diameter of the stripping section of the continuous rectification column is __________ that of the enriching section.

Either more or less (depending upon relative volatility)
Less than
More than
Same as

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Process Equipment and Plant Design
For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times.

About 9
About 3
Considerably less than 9
Considerably more than 9

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Process Equipment and Plant Design
Two iron pipes of the same nominal diameter but different schedule numbers will have the same

Outside diameter
Wall thickness
None of these
Inside diameter

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Process Equipment and Plant Design
For laminar flow (NRe < 2100) in steel pipe, the optimum inside pipe diameter is given by

Di, opt = 3 Q0.36 . ρ1.86 μ0.08
Di, opt = 3.9 Q0.45 . ρ0.23
Di, opt = 3 Q0.36 ρ0.18
Di, opt = 7.6 Q0.36 . ρ0.9

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Process Equipment and Plant Design
Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to

40% of the I.D. of the shell
5 cms
I.D. of the shell
25 cms

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