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Process Equipment and Plant Design

Process Equipment and Plant Design
Thickness of the frame of a plate and frame filter as compared to that of plates is

Less
Either A or B
More
Same

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Process Equipment and Plant Design
Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if

Plain carbon steel and cast iron parts are used
Both B & C
Wall thickness is > 30 mm
Material of construction is high alloy steel

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

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

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

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Process Equipment and Plant Design
For a 25 mm hole drilled in plates to be rivetted, the shank diameter of the rivet should be __________ mm.

23
26
27
25

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Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

None of these
Smaller reactor should come first
Larger reactor should come first
Equal sized reactors are the best

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