A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

80

60

45

95

80

60

45

95

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Process Equipment and Plant Design
Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8").

Equal to

Three fourth

1.5 times

Half

Equal to

Three fourth

1.5 times

Half

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Process Equipment and Plant Design
The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than

3

3.5

2

1

3

3.5

2

1

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Process Equipment and Plant Design
Baffles may be eliminated for

None of these

High viscosity liquids (> 600 poise)

Low viscosity liquids (< 200 poise)

Large diameter tanks

None of these

High viscosity liquids (> 600 poise)

Low viscosity liquids (< 200 poise)

Large diameter tanks

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Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

0.3 to 0.5 d

0.95 d

0.65 to 0.85 d

0.1 to 0.2 d

0.3 to 0.5 d

0.95 d

0.65 to 0.85 d

0.1 to 0.2 d

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Process Equipment and Plant Design
The maximum liquid gradient over a tray must not exceed

0.5" -1.25"

Half the tray spacing

2"-3.5"

5"

0.5" -1.25"

Half the tray spacing

2"-3.5"

5"

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Process Equipment and Plant Design

Process Equipment and Plant Design A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than

Process Equipment and Plant Design Baffles may be eliminated for

Process Equipment and Plant Design For turbine agitator, the impeller diameter is about

Process Equipment and Plant Design The maximum liquid gradient over a tray must not exceed

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than

Process Equipment and Plant Design
Baffles may be eliminated for

Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

Process Equipment and Plant Design
The maximum liquid gradient over a tray must not exceed