A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to

Process Equipment and Plant Design
A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to

5 mm

10 mm

8 mm

6 mm

5 mm

10 mm

8 mm

6 mm

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Process Equipment and Plant Design
Optimum reflux ratio in a continuous distillation column is determined by the

Total cost consideration (fixed cost of the column plus the cooling water & steam cost)

Flooding limit of the column

None of these

Maximum permissible vapour velocity

Total cost consideration (fixed cost of the column plus the cooling water & steam cost)

Flooding limit of the column

None of these

Maximum permissible vapour velocity

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Process Equipment and Plant Design
Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the

Working stress to ultimate stress

Ultimate stress to working stress

None of these

Ultimate stress to breaking stress

Working stress to ultimate stress

Ultimate stress to working stress

None of these

Ultimate stress to breaking stress

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a long tube vertical evaporator.

Liquor level is maintained at l/3rd to 1/2 of the height of the tube

None of these

Steam is fed to the shell, whereas the liquor is filled inside the tube

Tube dia is 3-6 cms, while tube length in 3-6 metres

Liquor level is maintained at l/3rd to 1/2 of the height of the tube

None of these

Steam is fed to the shell, whereas the liquor is filled inside the tube

Tube dia is 3-6 cms, while tube length in 3-6 metres

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Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

1000

5000

10000

3000

1000

5000

10000

3000

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Process Equipment and Plant Design
Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.

Skirt

Saddle

Guy wire

Lug

Skirt

Saddle

Guy wire

Lug

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Process Equipment and Plant Design

Process Equipment and Plant Design Optimum reflux ratio in a continuous distillation column is determined by the

Process Equipment and Plant Design Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the

Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of a long tube vertical evaporator.

Process Equipment and Plant Design In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

Process Equipment and Plant Design Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.

Process Equipment and Plant Design
Optimum reflux ratio in a continuous distillation column is determined by the

Process Equipment and Plant Design
Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the

Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a long tube vertical evaporator.

Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

Process Equipment and Plant Design
Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.