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Mechanical Operations

Mechanical Operations
Cyclones are used primarily for separating

Liquids
Solids from solids
Solids
Solids from fluids

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Mechanical Operations
Which of the following minerals is not subjected to magnetic separation method?

Chromite
Galena
Siderite
Rutile

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Mechanical Operations
Maximum size reduction in a ball mill is done by the, __________ action.

Compression
Attrition
Impact
Cutting

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Mechanical Operations
Capacity (in tons/hr) of jaw/gyratory crusher is equal to (where, L = length of the receiving opening, cm S = greater width of the discharge opening, cm)

L.S
0.087 L.S
0.01 L.S
L.S/0.087

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Mechanical Operations
Size measurement of ultrafine particles can be best expressed in terms of

Screen size
Surface area per unit mass
Centimetre
Micron

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Mechanical Operations
Colloidal mills are used for __________ grinding.

Ultrafine
Fine
Intermediate
Coarse

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