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Mechanical Operations

Mechanical Operations
Froth floatation is the most suitable for treating

Sulphide ores
None of these
Quartzite
Iron ores

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Mechanical Operations
Chance process is used for the

Concentration of iron ore
Concentration of pyrites
Cleaning of coal
Water treatment

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Mechanical Operations
Which of the following is not a wet classifier?

Dorr Oliver rake classifier
Hydrocyclones
Sharpies supercentrifuge
None of these

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

3
30
85
25

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Mechanical Operations
Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ).

1/√μ
1/μ
1/μ²
√μ

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Mechanical Operations
Fluid medium used in the classification technique of mineral beneficiation is

Air
Both A & B
Water
Neither A nor B

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