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Mechanical Operations

Mechanical Operations
To remove very small amount of tiny solid impurities from liquid, we use a

Pressure filter
Centrifugal filter
Coagulant
Vacuum filter

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Mechanical Operations
In case of a hammer crusher, the

Rotor shaft carrying hammers can be vertical or horizontal
Maximum feed size may be 50 mm
Minimum product size is 3 mm
Feed may be highly abrasive (Moh's scale >5)

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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)

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

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Mechanical Operations
Screen capacity is expressed in terms of

Tons/hr
Tons/hr-ft²
Both A & B
Tons/ft²

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Mechanical Operations
If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by

Φs = 6 Vp/dp sp
Φs = dp Sp/Vp
Φs = Vp/dp sp
Φs = 6 dp Sp/Vp

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Mechanical Operations
Fluid energy mill comes in the category of

Crusher
Cutter
Grinder
Ultrafine grinder

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MORE MCQ ON Mechanical Operations

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