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.

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.

150

50

25

75

150

50

25

75

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Process Equipment and Plant Design
For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell

Remains same throughout

Increases upwards

Decreases upwards

May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell

Remains same throughout

Increases upwards

Decreases upwards

May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell

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Process Equipment and Plant Design
For high pressure process equipments/vessels, the connected nozzle should be

Welded

Brazed

Flanged

Screwed

Welded

Brazed

Flanged

Screwed

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Process Equipment and Plant Design
A pipe is generally made of circular cross-section, because a circular cross-section has the

Lowest surface area requirement for a given volume

Both A & B

None of these

Higher structural strength

Lowest surface area requirement for a given volume

Both A & B

None of these

Higher structural strength

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Process Equipment and Plant Design
For turbulent flow (NRe > 2100) of low viscosity fluid (μ > 20cp) in steel pipes, the optimum inside pipe diameter is given by(where, Q = fluid flow rate, ft³/sec.ρ = fluid density, lb/ft³ μ = fluid viscosity, centipoise Di = optimum inside pipe diameter, inches)

Di, opt = 4.7 Q0.36 . μ3.2ρ0.13

Di, opt = 3.9 Q0.45 . μ0.95

Di, opt = 3.9 Q0.45 ρ0.13

Di, opt = 3 Q0.36 . μ0.88

Di, opt = 4.7 Q0.36 . μ3.2ρ0.13

Di, opt = 3.9 Q0.45 . μ0.95

Di, opt = 3.9 Q0.45 ρ0.13

Di, opt = 3 Q0.36 . μ0.88

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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

Same

Either A or B; no generalisation can be made

Less

More

Same

Either A or B; no generalisation can be made

Less

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Process Equipment and Plant Design

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.

Process Equipment and Plant Design For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell

Process Equipment and Plant Design For high pressure process equipments/vessels, the connected nozzle should be

Process Equipment and Plant Design A pipe is generally made of circular cross-section, because a circular cross-section has the

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
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.

Process Equipment and Plant Design
For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell

Process Equipment and Plant Design
For high pressure process equipments/vessels, the connected nozzle should be

Process Equipment and Plant Design
A pipe is generally made of circular cross-section, because a circular cross-section has the

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