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Process Equipment and Plant Design

Process Equipment and Plant Design
A pressure vessel is said to be made of 'thick' shell, if the ratio of its diameter to wall thickness is

20
10
10
20

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Process Equipment and Plant Design
25 per cent cut segmental baffle means that the baffle

Width is 25% of its height
Height is 75% of the I.D. of the shell
Height is 25% of the I.D. of the shell
Spacing is 75% of its height

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Process Equipment and Plant Design
In case of bubble cap distillation column of diameter greater than 1.2 metres, the cap diameter is roughly about __________ cms.

20
10
35
30

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Process Equipment and Plant Design
Rotary driers are most economically designed for the number of heat transfer units (HTU) from

1.5 to 2.5
10 to 20
0.01 to 1
5 to 10

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Process Equipment and Plant Design
Spherical shaped pressure vessel is considered to be the most ideal, because it can

Be supported very easily
Withstand higher pressure for a given metallic shell thickness
Be designed without wind load considerations
Be fabricated very easily

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

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

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