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Mechanical Operations

Mechanical Operations
__________ conveyor is the most suitable for long distance transportation of cold, non-abrasive granular/irregular shape/fine materials.

Belt
Apron
Bucket
Screw

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Mechanical Operations
In washing type plate and frame filter press, the ratio of washing rate to the final filtrate rate is

1/2
4
1/4
1

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Mechanical Operations
The work index in Bond's law for crushing of solids has the following dimensions

KW/ton
KWh.m1/2/ton
KWh/ton
No units (dimensionless)

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Mechanical Operations
Sphericity of pulverised coal is

>1
∞
1

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Mechanical Operations
Fluid medium used in the classification technique of mineral beneficiation is

Air
Both A & B
Water
Neither A nor B

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Mechanical Operations
For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is

2250
230
460
1125

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