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Process Equipment and Plant Design

Process Equipment and Plant Design
In the agitators, the power required will be changed with the increase of diameter of agitator (D) as

D
D⁹
D²
D⁵

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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.

1.5 to 3
2.5
1.6 to 2
1.3 to 2

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Process Equipment and Plant Design
Length to diameter ratio of most rotary driers is in the range of

20 to 30
1 to 2
4 to 10
10 to 20

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Process Equipment and Plant Design
Diameter of the seive tray column is determined by the

Height of the plate spacing
Hole diameter of the seive tray
Lower limit of vapour velocity
Upper limit of the vapour velocity

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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

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

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Process Equipment and Plant Design
Slope of countercurrent flow rotary drier is in the range of __________ meter/metre.

0 to 1.5
0 to 0.8
0 to 2.2
0 to 0.08

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