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Mechanical Operations

Mechanical Operations
Which of the following comes in the category of primary crusher for hard and tough stone?

Jaw crusher
None of these
Cone crusher
Gyratory crusher

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Mechanical Operations
Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the

Cage mill
Bradford's breaker
Blake jaw crusher
Stamp mill

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Mechanical Operations
In paint industries, blending of light paste is done by using a

Charge can mixer
None of these
Kneader
Masticator

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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
Flocculation
Elutriation
Sizing

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Mechanical Operations
To get ultrafine particles, the equipment used is a

Ball mill
Hammer crusher
Rod mill
Fluid energy mill

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Mechanical Operations
Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m)

3.6 W.Dr.ρ
3.6 V.W.Dr.ρ
3.6 V.W. ρ
3.6 V.W.Dr/ρ

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