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Mechanical Operations

Mechanical Operations
Ore concentration by jigging is based on the difference in the __________ of the particles.

Shape
Wettability
Specific gravities
None of these

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Mechanical Operations
According to Taggart's rule for selecting between a gyratory crusher and a jaw crusher; the later should be used, if the hourly tonnage to be crushed divided by the square of the gape expressed in cm is less than

0.184
0.0184
1.84
0.00184

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

Asbestos
Non-metallic ores
Rubber
Limestone

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Mechanical Operations
The inlet pressure in a constant rate filtration

Decreases gradually
Remains constant
None of these
Increases continuously

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Mechanical Operations
Filter medium resistance is that offered by the

Filter cloth and the embedded particle collectively
Embedded particles in the septum
None of these
Filter cloth

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Mechanical Operations
Wheat is ground into flour in a

Fluid energy mill
Roller crusher
Hammer crusher
Impact mill

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