Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

Process Equipment and Plant Design
Tube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.

16

19

38

28

16

19

38

28

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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

More

Less

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

Same

More

Less

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

Same

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Process Equipment and Plant Design
The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is __________ cms.

5

15

7.5

50

5

15

7.5

50

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Process Equipment and Plant Design
For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used?

(0.8)0.5

0.9

1

0.8

(0.8)0.5

0.9

1

0.8

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Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

More

Less

Same

Either A or B; no generalisation can be made

More

Less

Same

Either A or B; no generalisation can be made

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Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

0.5 d

2.5 d

1.5 d

D

0.5 d

2.5 d

1.5 d

D

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Process Equipment and Plant Design

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

Process Equipment and Plant Design The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is __________ cms.

Process Equipment and Plant Design Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

Process Equipment and Plant Design To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

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

Process Equipment and Plant Design
The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is __________ cms.

Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

Process Equipment and Plant Design
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to