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Process Equipment and Plant Design

Process Equipment and Plant Design
For identical operating conditions, the pressure drop over __________ tray is the highest out of the following.

Bubble cap
Valve
Sieve
Counterflow

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Process Equipment and Plant Design
Value of Peclet number = ∞, is the representative of

Plug flow
Complete back mixing
Eddy diffusivity = 0
Laminar flow

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Process Equipment and Plant Design
The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called

Skirt clearance
Static submergence
None of these
Downcomer liquid seal

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Process Equipment and Plant Design
Any shell opening greater than 5 cms for a storage tank must be reinforced for reason of

Preventing the local overstressing of the shell around the opening
Making the joint leak proof
Reduction of discontinuity in shape at the junction
None of these

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Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

Less
Either A or B; no generalisation can be made
More
Same

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Process Equipment and Plant Design
1.2 to 3.8 cms is the value of the

Downcomer liquid seal in case of a balanced tray design
All of these
Skirt clearance for bubble caps
Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.)

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