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Mechanical Operations

Mechanical Operations
Ore concentration by jigging is based on the difference in the __________ of the particles.

Specific gravities
Wettability
Shape
None of these

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Mechanical Operations
A belt conveyor used for the transportation of materials can

All of these
Handle materials upto 5000 tons/hr
Run upto 1 km
Travel at a speed upto 300 metres/minute

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Mechanical Operations
Range of compressibility co-efficient of the commercial compressible cake obtained in filtration operation is

0.01 to 0.1
0.1 to 0.3
0.2 to 0.8
0.2 to 0.4

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Mechanical Operations
Maximum size reduction in a fluid energy mill is achieved by

Cutting
Interparticle attrition
Compression
Impact

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Mechanical Operations
Moisture can be removed from lubricating oil using

Tubular centrifuge
Vacuum leaf filter
Sparkler filter
Clarifier

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Mechanical Operations
In classification, particles are said to be equal settling, if they have the same terminal velocities in the

Different fluids
Both B and C
Same field of force
Same fluid

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