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Process Equipment and Plant Design

Process Equipment and Plant Design
The distance between the centre of a rivet hole to the nearest edge of the plate is called

Margin
Back pitch
None of these
Pitch

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Process Equipment and Plant Design
In actual operation of a bubble cap distillation tower, the __________ at the bottom of the tower is more than that at the top of the tower.

Pressure and temperature
Vapour molecular weight
Molal flow rate of vapour
All of these

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Process Equipment and Plant Design
The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.

Hemispherical
Flat plate
Ellipsoidal
Torispherical

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Process Equipment and Plant Design
The most common standard size of bubble caps used in industrial operation is

6" dia cap with 4" dia riser
8" dia cap with 1" dia riser
1" dia cap with 0.5" dia riser
4" dia cap with 8" dia riser

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Process Equipment and Plant Design
The absorption factor is defined as (where, S₁ = slope of the equilibrium curve, S₂ = slope of the operating line)

1/S₁.S₂
S₂/S₁
S₁/S₂
S₁.S₂

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Process Equipment and Plant Design
Shortest distance between two tubes is

None of these
Called tube pitch
Called tube clearance
More in case of triangular pitch as compared to square pitch of tube layout

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