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

8 mm

6 mm

10 mm

5 mm

8 mm

6 mm

10 mm

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Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Smaller reactor should come first

Larger reactor should come first

Equal sized reactors are the best

None of these

Smaller reactor should come first

Larger reactor should come first

Equal sized reactors are the best

None of these

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Process Equipment and Plant Design
Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.

3 times the thickness

Either A or B, whichever is larger

6% of I.D.

Either A or B, whichever is smaller

3 times the thickness

Either A or B, whichever is larger

6% of I.D.

Either A or B, whichever is smaller

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Process Equipment and Plant Design
In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around

3.5

2.5

1.5

0.5

3.5

2.5

1.5

0.5

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Process Equipment and Plant Design
The distance between the centre of a rivet hole to the nearest edge of the plate is called

Pitch

Back pitch

Margin

None of these

Pitch

Back pitch

Margin

None of these

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Process Equipment and Plant Design
Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about __________ percent of the total thickness.

40 to 50

30 to 40

10 to 20

1 to 5

40 to 50

30 to 40

10 to 20

1 to 5

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Process Equipment and Plant Design

Process Equipment and Plant Design The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Process Equipment and Plant Design In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around

Process Equipment and Plant Design The distance between the centre of a rivet hole to the nearest edge of the plate is called

Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Process Equipment and Plant Design
In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around

Process Equipment and Plant Design
The distance between the centre of a rivet hole to the nearest edge of the plate is called