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

10 mm

8 mm

6 mm

5 mm

10 mm

8 mm

6 mm

5 mm

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Process Equipment and Plant Design
In the design of a bag filter, the gas temperature is an important consideration, as it affects the

Gas density

Gas viscosity

Fibre selection

All of these

Gas density

Gas viscosity

Fibre selection

All of these

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Process Equipment and Plant Design
The units of Young's modulus of elasticity and __________ are the same.

Strain

Modular ratio

None of these

Stress

Strain

Modular ratio

None of these

Stress

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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 = 3.9 Q0.45 . μ0.95

Di, opt = 3 Q0.36 . μ0.88

Di, opt = 4.7 Q0.36 . μ3.2ρ0.13

Di, opt = 3.9 Q0.45 ρ0.13

Di, opt = 3.9 Q0.45 . μ0.95

Di, opt = 3 Q0.36 . μ0.88

Di, opt = 4.7 Q0.36 . μ3.2ρ0.13

Di, opt = 3.9 Q0.45 ρ0.13

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Process Equipment and Plant Design
The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.

20-40

100-150

1000-1500

43835

20-40

100-150

1000-1500

43835

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Process Equipment and Plant Design
Needle valves are generally not used for

Smaller sizes of pipe

Very large diameter pipes

High pressure throttling service

Very accurate flow control

Smaller sizes of pipe

Very large diameter pipes

High pressure throttling service

Very accurate flow control

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Process Equipment and Plant Design

Process Equipment and Plant Design In the design of a bag filter, the gas temperature is an important consideration, as it affects the

Process Equipment and Plant Design The units of Young's modulus of elasticity and __________ are the same.

Process Equipment and Plant Design The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.

Process Equipment and Plant Design Needle valves are generally not used for

Process Equipment and Plant Design
In the design of a bag filter, the gas temperature is an important consideration, as it affects the

Process Equipment and Plant Design
The units of Young's modulus of elasticity and __________ are the same.

Process Equipment and Plant Design
The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.

Process Equipment and Plant Design
Needle valves are generally not used for