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Process Equipment and Plant Design

Process Equipment and Plant Design
In a thin cylindrical shell, the hoop stress is __________ stress.

Compressive
Radial
Circumferential tensile
Longitudinal

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Process Equipment and Plant Design
1.2 to 3.8 cms is the value of the

Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.)
Skirt clearance for bubble caps
Downcomer liquid seal in case of a balanced tray design
All of these

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Process Equipment and Plant Design
Rivets are generally specified by the

None of these
Head diameter
Shank diameter
Overall length

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the baffles on shell side is primarily provided for

Fixing the tubes
Increasing pressure drop
Creating turbulence
Reducing scale deposition

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Process Equipment and Plant Design
Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8").

Half
Equal to
1.5 times
Three fourth

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Process Equipment and Plant Design
Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than __________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop.

50
25
75
150

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