In case of a hammer crusher, the

Mechanical Operations
In case of a hammer crusher, the

Rotor shaft carrying hammers can be vertical or horizontal

Minimum product size is 3 mm

Feed may be highly abrasive (Moh's scale >5)

Maximum feed size may be 50 mm

Rotor shaft carrying hammers can be vertical or horizontal

Minimum product size is 3 mm

Feed may be highly abrasive (Moh's scale >5)

Maximum feed size may be 50 mm

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Mechanical Operations
__________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.

Concentration ratio

Selectivity index

Separation efficiency

None of these

Concentration ratio

Selectivity index

Separation efficiency

None of these

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Mechanical Operations
The speed of a rotary drum vacuum filter may be about __________ rpm.

500

1

100

50

500

1

100

50

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Mechanical Operations
Bond crushing law

States that the work required to form particle of any size from very large feed is proportional to the square root of the volume to surface ratio of the product

Is less realistic in estimating the power requirements of commercial crushers

States that the work required for the crushing is proportional to the new surface created

Calls for relatively less energy for the smaller product particles, than does the Rittinger law

States that the work required to form particle of any size from very large feed is proportional to the square root of the volume to surface ratio of the product

Is less realistic in estimating the power requirements of commercial crushers

States that the work required for the crushing is proportional to the new surface created

Calls for relatively less energy for the smaller product particles, than does the Rittinger law

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Mechanical Operations
In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill.

70

35

85

50

70

35

85

50

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Mechanical Operations
Ribbon blenders are exclusively meant for

Blending miscible liquids

Continuous mixing

Non-flowing powder and thin pastes

Bath mixing

Blending miscible liquids

Continuous mixing

Non-flowing powder and thin pastes

Bath mixing

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Mechanical Operations

Mechanical Operations In case of a hammer crusher, the

Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.

Mechanical Operations The speed of a rotary drum vacuum filter may be about __________ rpm.

Mechanical Operations Bond crushing law

Mechanical Operations In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill.

Mechanical Operations Ribbon blenders are exclusively meant for

Mechanical Operations
In case of a hammer crusher, the

Mechanical Operations
__________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.

Mechanical Operations
The speed of a rotary drum vacuum filter may be about __________ rpm.

Mechanical Operations
Bond crushing law

Mechanical Operations
In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill.

Mechanical Operations
Ribbon blenders are exclusively meant for