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Process Equipment and Plant Design

Process Equipment and Plant Design
Flanges are connected to pipes by

Brazing
All of these
Screwing
Welding

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

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

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Process Equipment and Plant Design
For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is

D2/(d1 + d2)
(d1 + d2)/d2
(d1 + d2)/d1
D1/(d1 + d2)

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Process Equipment and Plant Design
Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is

Same
More or less depending upon the pressure & temperature inside the vessel and the nature of the fluid contained therein
Less
More

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

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

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

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

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