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Mechanical Operations

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

3
85
25
30

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Mechanical Operations
__________ is a cohesive solid.

Wheat
Sand
Wet clay
None of these

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Mechanical Operations
Which of the following oxides is not present in hematite iron ore?

Manganese oxide
Cobalt oxide
Titanium oxide
Calcium oxide

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Mechanical Operations
Production rate __________ with increased fineness, with a given energy input to the size reduction machine.

May increase or decrease; depends on the machine
Remains unchanged
Increases
Decreases

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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
Concentration ratio
Separation efficiency
None of these

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Mechanical Operations
Moore filter is a __________ filter.

Rotary
Sand
Press
Leaf

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