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

6 mm

8 mm

5 mm

10 mm

6 mm

8 mm

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Process Equipment and Plant Design
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

Increase by 1.8

Decrease by 22

None of these

Increase by 21.6

Increase by 1.8

Decrease by 22

None of these

Increase by 21.6

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Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

5

55

20

35

5

55

20

35

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Process Equipment and Plant Design
Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is

Same

Less

Cither A or B; depends upon the I.D. of the pipe

More

Same

Less

Cither A or B; depends upon the I.D. of the pipe

More

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Process Equipment and Plant Design
Apex angle of conical heads used in the bottom heads of chemical process equipments is usually

30°

60°

75°

45°

30°

60°

75°

45°

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Process Equipment and Plant Design
When one of the fluids is highly corrosive and has fouling tendency, it should

Preferably flow inside the tube for its easier internal cleaning

Flow at a very slow velocity

Flow outside the tube, when the flow is counter-current and inside the tube when the flow is co-current

Perferably flow outside the tube

Preferably flow inside the tube for its easier internal cleaning

Flow at a very slow velocity

Flow outside the tube, when the flow is counter-current and inside the tube when the flow is co-current

Perferably flow outside the tube

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Process Equipment and Plant Design

Process Equipment and Plant Design If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

Process Equipment and Plant Design Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

Process Equipment and Plant Design Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is

Process Equipment and Plant Design Apex angle of conical heads used in the bottom heads of chemical process equipments is usually

Process Equipment and Plant Design When one of the fluids is highly corrosive and has fouling tendency, it should

Process Equipment and Plant Design
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

Process Equipment and Plant Design
Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is

Process Equipment and Plant Design
Apex angle of conical heads used in the bottom heads of chemical process equipments is usually

Process Equipment and Plant Design
When one of the fluids is highly corrosive and has fouling tendency, it should