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Mechanical Operations

Mechanical Operations
Feed size of ≥ 25 cms can be accepted by

Rod mill
Ball mill
Fluid energy mill
Jaw crusher

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Mechanical Operations
Ultracentrifuges running at speeds upto 100000 rpm is normally used for the

Separation of isotopes based on their density or molecular weights difference
Separation of cream from milk
Dewaxing of lubricating oil
Concentration of rubber latex

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Mechanical Operations
The unit of filter medium resistance is

Gm/cm⁻¹
Cm⁻¹
Cm/gm⁻¹
Gm⁻¹

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Mechanical Operations
Ball mills and tube mills with flint or porcelain balls are used for size reduction of

Rubber
Limestone
Asbestos
Non-metallic ores

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Mechanical Operations
Which is a secondary crusher for a hard & tough stone?

Jaw crusher
Impact crusher
Toothed roll crusher
Cone crusher

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Mechanical Operations
Crushing efficiency of a machine ranges between __________ percent.

5 to 10
50 to 70
0.1 to 2
20 to 25

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MORE MCQ ON Mechanical Operations

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