Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for

Mechanical Operations
Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for

German standard screens (DIN 1171) etc

All of these

British standard screens

American standard screens (ASTM and Tyler standard screens)

German standard screens (DIN 1171) etc

All of these

British standard screens

American standard screens (ASTM and Tyler standard screens)

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Mechanical Operations
The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m² V = rising velocity of fluid, m/sec.S = percentage of solids in the suspension by volume.ρ = density of solids, kg/m³)

3.6 A.S. ρ

3.6 A.V.ρ

3.6 AVS.ρ

3.6 AVS/ρ

3.6 A.S. ρ

3.6 A.V.ρ

3.6 AVS.ρ

3.6 AVS/ρ

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Mechanical Operations
Separation of materials of the same density based on their sizes by using then-different rates of flow is called

Sorting

Elutriation

Flocculation

Sizing

Sorting

Elutriation

Flocculation

Sizing

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Mechanical Operations
Which of the following is not a wet classifier?

None of these

Dorr Oliver rake classifier

Hydrocyclones

Sharpies supercentrifuge

None of these

Dorr Oliver rake classifier

Hydrocyclones

Sharpies supercentrifuge

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Mechanical Operations
Cumulative analysis for determining surface is more precise than differential analysis, because of the

Assumption that all particles in a single fraction are equal in size, is not needed

None of these

Assumption that all particles in a single fraction are equal in size

Fact that screening is more effective

Assumption that all particles in a single fraction are equal in size, is not needed

None of these

Assumption that all particles in a single fraction are equal in size

Fact that screening is more effective

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Mechanical Operations
Cake resistance is

Independent of pressure drop

Important in the beginning of filtration

Decreased with the time of filtration

None of these

Independent of pressure drop

Important in the beginning of filtration

Decreased with the time of filtration

None of these

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Mechanical Operations

Mechanical Operations Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for

Mechanical Operations The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m² V = rising velocity of fluid, m/sec.S = percentage of solids in the suspension by volume.ρ = density of solids, kg/m³)

Mechanical Operations Separation of materials of the same density based on their sizes by using then-different rates of flow is called

Mechanical Operations Which of the following is not a wet classifier?

Mechanical Operations Cumulative analysis for determining surface is more precise than differential analysis, because of the

Mechanical Operations Cake resistance is

Mechanical Operations
Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for

Mechanical Operations
The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m² V = rising velocity of fluid, m/sec.S = percentage of solids in the suspension by volume.ρ = density of solids, kg/m³)

Mechanical Operations
Separation of materials of the same density based on their sizes by using then-different rates of flow is called

Mechanical Operations
Which of the following is not a wet classifier?

Mechanical Operations
Cumulative analysis for determining surface is more precise than differential analysis, because of the

Mechanical Operations
Cake resistance is