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Mechanical Operations

Mechanical Operations
Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a

Mixer-extruder
Muller mixer
Pug mill
Banbury mixer

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Mechanical Operations
Compressibility co-efficient for an absolutely compressible cake is

0 to 1
1
∞

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Mechanical Operations
__________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.

Selectivity index
None of these
Separation efficiency
Concentration ratio

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Mechanical Operations
Percentage of drum submerged in the slurry in case of rotary drum filter is

85
3
30
25

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Mechanical Operations
200 mesh seive size corresponds to __________ microns.

200
74
154
24

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Mechanical Operations
__________ conveyors are also called scrapers.

Helical flight
Apron
Both B & C
Screw

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