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Process Equipment and Plant Design

Process Equipment and Plant Design
Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs.

Conical
Fixed
Flat
Floating

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Process Equipment and Plant Design
At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally.

Lower
Unpredictable
Higher
Same

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Process Equipment and Plant Design
__________ is the determining factor for the number of bubble caps to be used per tray.

Tray diameter
Permissible slot velocity
Liquid load
Vapor load

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Process Equipment and Plant Design
In case of a continuous distillation column, increase in reflux ratio may result in the

All of these
Greater cost for the reboiler heat supply
Greater cost for the condenser coolant
Lower fixed charges for the column

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Process Equipment and Plant Design
Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.

1/64 and 1/8
1/8 and 1/64
1/2 and 8
1/2 and 5

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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 = 7.6 Q0.36 . ρ0.9
Di, opt = 3 Q0.36 ρ0.18

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