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.

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.

10 to 20

1 to 5

40 to 50

30 to 40

10 to 20

1 to 5

40 to 50

30 to 40

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Process Equipment and Plant Design
Optimum economic pipe diameter for fluid flow is determined by the

Total cost considerations (pumping cost plus fixed cost of the pipe)

None of these

Viscosity of the fluid

Density of the fluid

Total cost considerations (pumping cost plus fixed cost of the pipe)

None of these

Viscosity of the fluid

Density of the fluid

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Process Equipment and Plant Design
Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi)

Η = 17 - 61.1 log μ

Η = 24.6 (Δp/μ)

Η = 0.25 log μ - 1.67

Η = 1.66 - 0.25 log μ

Η = 17 - 61.1 log μ

Η = 24.6 (Δp/μ)

Η = 0.25 log μ - 1.67

Η = 1.66 - 0.25 log μ

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Process Equipment and Plant Design
__________ heat exchanger is also known as 'hair pin type' exchanger,

Double pipe

Regenerative

Finned

Plate type

Double pipe

Regenerative

Finned

Plate type

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Process Equipment and Plant Design
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

1/50th

1/30th

1/10th

1/20th

1/50th

1/30th

1/10th

1/20th

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Process Equipment and Plant Design
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise.

600

300

1500

1000

600

300

1500

1000

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Process Equipment and Plant Design

Process Equipment and Plant Design Optimum economic pipe diameter for fluid flow is determined by the

Process Equipment and Plant Design __________ heat exchanger is also known as 'hair pin type' exchanger,

Process Equipment and Plant Design Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

Process Equipment and Plant Design Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise.

Process Equipment and Plant Design
Optimum economic pipe diameter for fluid flow is determined by the

Process Equipment and Plant Design
__________ heat exchanger is also known as 'hair pin type' exchanger,

Process Equipment and Plant Design
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

Process Equipment and Plant Design
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise.