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Mechanical Operations

Mechanical Operations
Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is

0.5
√3
1
√2

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Mechanical Operations
To remove very small amount of tiny solid impurities from liquid, we use a

Coagulant
Vacuum filter
Centrifugal filter
Pressure filter

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Mechanical Operations
Electrical energy consumed by a jaw crusher is not a function of the

Average feed size
None of these
Machine capacity
Average product size

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Mechanical Operations
The most suitable equipment for removing the fine dust particle (< 1 micron dia.) from air below its dew point will be a/an

Wet scrubber
Bag filter
Electrostatic precipitator
Cyclone separator

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Mechanical Operations
Which of the following is not used as a surface active agent in a flocculation operation?

Sodium silicate
Alumina
Quartz
Lime

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Mechanical Operations
Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their

Particle sizes
None of these
Terminal velocities
Densities

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