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Mechanical Operations

Mechanical Operations
Trommels separate a mixture of particles depending on their

Electrical & magnetic properties
Wettability
Size
Density

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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
A widely used size reduction equipment for __________ is Bradford breaker.

Talc
Iron core
Coal
Wheat

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Mechanical Operations
Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the

Density separation
Size
Volatile matter content
Differential wettability

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Mechanical Operations
The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle).

12/D.p
6/D.p
4/D.p
2/D.p

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Mechanical Operations
Which is a secondary crusher for a hard & tough stone?

Cone crusher
Jaw crusher
Toothed roll crusher
Impact crusher

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MORE MCQ ON Mechanical Operations

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