Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

Mechanical Operations
Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

Either A, B or C

Unblanced fly wheels

Electromagnets

Cams or eccentric shafts

Either A, B or C

Unblanced fly wheels

Electromagnets

Cams or eccentric shafts

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Mechanical Operations
What is the selectivity index, if the grade of tailings & concentrate is the same?

1

0.5

∞

1

0.5

∞

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Mechanical Operations
Fluid energy mill comes in the category of

Crusher

Ultrafine grinder

Cutter

Grinder

Crusher

Ultrafine grinder

Cutter

Grinder

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Mechanical Operations
Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

Kick's law

Bond's crushing law

None of these

Rittinger's law

Kick's law

Bond's crushing law

None of these

Rittinger's law

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Mechanical Operations
In bag filters, filter fabrics are never made of

Polyester fibres

Cotton fibres

Nylon fibres

Metallic wire woven mesh

Polyester fibres

Cotton fibres

Nylon fibres

Metallic wire woven mesh

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Mechanical Operations
Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles)

M/ρ . Vp

Vp/m . ρ

M . Vp/ρ

M . ρ/Vp

M/ρ . Vp

Vp/m . ρ

M . Vp/ρ

M . ρ/Vp

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Mechanical Operations

Mechanical Operations Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

Mechanical Operations What is the selectivity index, if the grade of tailings & concentrate is the same?

Mechanical Operations Fluid energy mill comes in the category of

Mechanical Operations Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

Mechanical Operations In bag filters, filter fabrics are never made of

Mechanical Operations Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles)

Mechanical Operations
Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

Mechanical Operations
What is the selectivity index, if the grade of tailings & concentrate is the same?

Mechanical Operations
Fluid energy mill comes in the category of

Mechanical Operations
Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

Mechanical Operations
In bag filters, filter fabrics are never made of

Mechanical Operations
Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles)