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Mechanical Operations

Mechanical Operations
Hot, lumpy & abrasive materials are best transported by using a/an __________ conveyor.

Belt
Screw
Apron
Flight

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

Apron conveyor
Bucket elevator
Belt conveyor
Screw colaveyor

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Mechanical Operations
For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter)

π/6(=V/D³)
None of these
π(=A/D²)
AD/V

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Mechanical Operations
Pine oil and cresylic acid are used as __________ in the froth floatation process.

Depressor
Frother
Conditioner
Collector

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Mechanical Operations
The most suitable equipment for the transportation of 200 mesh size particles is a

Pneumatic conveyor
Screw conveyor
Belt conveyor
Bucket elevator

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Mechanical Operations
Energy requirement (per unit mass of material crushed/ground) is highest for

Rod mill
Jaw crusher
Ball mill
Fluid energy mill

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