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Process Equipment and Plant Design

Process Equipment and Plant Design
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

√A
4 P/A
4 A/P
A/P

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Process Equipment and Plant Design
Reflux ratio variation in a distillation column is between

None of these
Zero and infinity
Minimum and infinity
Zero and one

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Process Equipment and Plant Design
Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.

NH₃
SO₂
None of these
CO₂

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

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

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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
Which of the following is used to set the diameter of the distillation column?

Static submergence
Allowable vapour velocity
Length of straight rectangular weir on cross-flow tray
Number of theorectical plates

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