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Mechanical Operations

Mechanical Operations
Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is

0.5
√2
√3
1

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Mechanical Operations
Which of the following minerals is not subjected to magnetic separation method?

Chromite
Siderite
Galena
Rutile

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Mechanical Operations
Which of the following conveyors cannot be recommended for transportation of abrasive materials?

Chain conveyor
Apron conveyor
Flight conveyor
Belt conveyor

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

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

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Mechanical Operations
Solid particles separation based on the difference in their flow velocities through fluids is termed as the

Elutriation
Clarification
Classification
Sedimentation

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Mechanical Operations
Screen capacity is expressed in terms of

Both A & B
Tons/hr
Tons/ft²
Tons/hr-ft²

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