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Process Equipment and Plant Design

Process Equipment and Plant Design
Speed of the drum of the rotary vacuum filter normally ranges from __________ rpm.

0.1 to 2
5 to 7
3 to 8
8 to 15

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

8
80
180
1

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Process Equipment and Plant Design
In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed __________ of the column diameter.

l/5th
l/15th
l/30th
l/50th

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Process Equipment and Plant Design
In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a

Either A or B
Clearance of 25-75 mm
Neither A nor B
Cap pitch of 1.3-2 times the cap diameter

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Process Equipment and Plant Design
Removable connection of tubes to tube sheet is called

Ferrule
Socket
Nipple
Saddle

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Process Equipment and Plant Design
The wall thickness of thin cylindrical shell with hemispherical ends is __________ that of the spherical ends.

More than
Equal to
Either B or C; depends on maximum permissible internal pressure
Less than

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