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Process Equipment and Plant Design

Process Equipment and Plant Design
The raio, (properller agitator dia/tank dia) is normally taken as

0.75-0.85
0.60-0.90
0.5-0.65
0.15-030

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Process Equipment and Plant Design
Apex angle of conical heads used in the bottom heads of chemical process equipments is usually

75°
45°
30°
60°

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Process Equipment and Plant Design
The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

1.5 to 2
0.5 to 1
1 to 1.5
2 to 2.5

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

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

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Process Equipment and Plant Design
Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder

Is easy to fabricate
Neither A nor B
Has greater structural strength
Both A & B

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Process Equipment and Plant Design
In shell and tube heat exchangers, straight tie rods are used to

Account for thermal strain
None of these
Fix the tubes in position
Hold baffle in space

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