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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.

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

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Process Equipment and Plant Design
Lap joints are preferred for plates having thickness __________ mm.

> 3
43961
> 5
< 12.5

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Process Equipment and Plant Design
In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area)

Sa = 1.5 Aa
Aa = Sa
Aa = 1.5 Sa
1.2 Aa = 1.2 Sa

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Process Equipment and Plant Design
In a thin cylindrical shell, the hoop stress is __________ stress.

Radial
Circumferential tensile
Compressive
Longitudinal

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Process Equipment and Plant Design
In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps.

1.3 to 2
1.6 to 2
2.5
1.5 to 3

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Process Equipment and Plant Design
Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation

Increases capacity
Both B & C
Does not affect the capacity
Increases economy

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