Which of the following mineral dressing operations is termed as 'comminution'?

Mechanical Operations
Which of the following mineral dressing operations is termed as 'comminution'?

Tabling

Spiralling

None of these

Panning

Tabling

Spiralling

None of these

Panning

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Mechanical Operations
Trommels employ __________ for screening of materials.

Punched plate

None of these

Woven wire screen

Fibrous cloth

Punched plate

None of these

Woven wire screen

Fibrous cloth

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Mechanical Operations
Which of the following screens has the maximum capacity?

Trommels

Grizzlies

Vibrating screen

Shaking screen

Trommels

Grizzlies

Vibrating screen

Shaking screen

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Mechanical Operations
Wet grinding in a revolving mill __________ as compared to dry grinding.

Complicates handling of the product

Increases capacity

Requires more energy

Gives less wear on chamber walls

Complicates handling of the product

Increases capacity

Requires more energy

Gives less wear on chamber walls

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Mechanical Operations
The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to

N¹

N³

N²

N°

N¹

N³

N²

N°

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Mechanical Operations
Bond crushing law

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

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

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

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

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

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

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Mechanical Operations

Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'?

Mechanical Operations Trommels employ __________ for screening of materials.

Mechanical Operations Which of the following screens has the maximum capacity?

Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding.

Mechanical Operations The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to

Mechanical Operations Bond crushing law

Mechanical Operations
Which of the following mineral dressing operations is termed as 'comminution'?

Mechanical Operations
Trommels employ __________ for screening of materials.

Mechanical Operations
Which of the following screens has the maximum capacity?

Mechanical Operations
Wet grinding in a revolving mill __________ as compared to dry grinding.

Mechanical Operations
The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to

Mechanical Operations
Bond crushing law