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Mechanical Operations

Mechanical Operations
Chance process is used for the

Cleaning of coal
Concentration of pyrites
Concentration of iron ore
Water treatment

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Mechanical Operations
Ribbon blenders are exclusively meant for

Blending miscible liquids
Non-flowing powder and thin pastes
Continuous mixing
Bath mixing

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Mechanical Operations
Solid particles of different densities are separated by

Cyclones
Thickness
Filters
Sorting classifier

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Mechanical Operations
For transporting pasty material, one will use a/an

Apron conveyor
Belt conveyor
Bucket elevator
Screw colaveyor

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Mechanical Operations
At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter.

Po ∝ Re-1.0
Po ∝ Re1.0
Po ∝ Re0.0
Po ∝ Re0.5

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Mechanical Operations
__________ mills are termed as impactors.

Rolling-compression
Cage
None of these
Hammer

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