Mechanical Operations
Which of the following is not accomplished by agitation of liquids in agitators?

Blending of immiscible liquids
Dispersing immiscible liquid in form of emulsion
Suspending solid particles
Dispersing gas in liquid

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Mechanical Operations
In case of a hammer crusher,

Crushing takes place by impact breaking
All of these
Maximum acceptable feed size is 30 cms
Reduction ratio can be varied by adjusting the distance from cage to hammers

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