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

5 mm

6 mm

10 mm

8 mm

5 mm

6 mm

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Process Equipment and Plant Design
For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used?

1

0.9

(0.8)0.5

0.8

1

0.9

(0.8)0.5

0.8

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Process Equipment and Plant Design
Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter.

0.5 to 0.6

0.1 to 0.25

0.3 to 0.5

0.65 to 0.80

0.5 to 0.6

0.1 to 0.25

0.3 to 0.5

0.65 to 0.80

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Process Equipment and Plant Design
Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to

I.D. of the shell

40% of the I.D. of the shell

25 cms

5 cms

I.D. of the shell

40% of the I.D. of the shell

25 cms

5 cms

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Process Equipment and Plant Design
At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure

May increase or decrease depending upon the solubility of the gas in the liquid

Decreases

Remains same

Increases

May increase or decrease depending upon the solubility of the gas in the liquid

Decreases

Remains same

Increases

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Process Equipment and Plant Design
The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.

Four times

Twice

Equal to

Half

Four times

Twice

Equal to

Half

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Process Equipment and Plant Design

Process Equipment and Plant Design Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter.

Process Equipment and Plant Design Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to

Process Equipment and Plant Design At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure

Process Equipment and Plant Design The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.

Process Equipment and Plant Design
Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter.

Process Equipment and Plant Design
Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to

Process Equipment and Plant Design
At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure

Process Equipment and Plant Design
The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.