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Mechanical Operations

Mechanical Operations
Shape factor for a cylinder whose length equals its diameter is

1.0
2.0
0.5
1.5

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Mechanical Operations
Shell and leaf filter as compared to plate and frame filter

All of these
Entails less labor cost
Facilitates filtration under higher pressure
Provides more effective washing

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Mechanical Operations
For separation of sugar solution from settled out mud, we use a __________ filter.

Plate and frame
Sparkler
Centrifugal
Rotary drum vaccum

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Mechanical Operations
Optimum ratio of operating speed to critical speed of a trommel is

1.5-2.5
0.5-2
1.33-1.45
0.33-0.45

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Mechanical Operations
The cake resistance increases steadily with the time of filtration in a plate and frame filter employing constant __________ filtration.

Rate
Both A & B
Neither A nor B
Pressure

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Mechanical Operations
Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m³)

3.6 D.V.ρ
3.6 W.D.V.
3.6 W.D.V.ρ
3.6 W.V.ρ

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