In case of a hammer crusher,

Mechanical Operations
In case of a hammer crusher,

Maximum acceptable feed size is 30 cms

Reduction ratio can be varied by adjusting the distance from cage to hammers

All of these

Crushing takes place by impact breaking

Maximum acceptable feed size is 30 cms

Reduction ratio can be varied by adjusting the distance from cage to hammers

All of these

Crushing takes place by impact breaking

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Mechanical Operations
Bond crushing law

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

Is less realistic in estimating the power requirements of commercial crushers

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

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

Is less realistic in estimating the power requirements of commercial crushers

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

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

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Mechanical Operations
Basic slag is not ground in

Jaw crushers

Tube mills

Ball mills

Compartment mills

Jaw crushers

Tube mills

Ball mills

Compartment mills

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Mechanical Operations
Filtration should be stopped in a filter press, if the

Filtration pressure rises suddenly

Liquor stops flowing out to the discharge

Cake becomes very dense

Both A & B

Filtration pressure rises suddenly

Liquor stops flowing out to the discharge

Cake becomes very dense

Both A & B

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Mechanical Operations
The critical speed of a trommel (N) is related to its dia (D) as

N ∝ 1/D

N ∝ D

N ∝ √D

N ∝ 1/√D

N ∝ 1/D

N ∝ D

N ∝ √D

N ∝ 1/√D

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Mechanical Operations
The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter.

Rotary

Vacuum

Sand

Plate & frame

Rotary

Vacuum

Sand

Plate & frame

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Mechanical Operations

Mechanical Operations In case of a hammer crusher,

Mechanical Operations Bond crushing law

Mechanical Operations Basic slag is not ground in

Mechanical Operations Filtration should be stopped in a filter press, if the

Mechanical Operations The critical speed of a trommel (N) is related to its dia (D) as

Mechanical Operations The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter.

Mechanical Operations
In case of a hammer crusher,

Mechanical Operations
Bond crushing law

Mechanical Operations
Basic slag is not ground in

Mechanical Operations
Filtration should be stopped in a filter press, if the

Mechanical Operations
The critical speed of a trommel (N) is related to its dia (D) as

Mechanical Operations
The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter.