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Mechanical Operations

Mechanical Operations
Gizzlies are used for separating __________ solids.

Coarse
Fine
Any size
None of these

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Mechanical Operations
Filtration rate does not depend upon the

Pressure drop & area of filtering surface
Properties of the cake & the filtrate
Resistance of the cake & the septum
None of these

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Mechanical Operations
__________ mill is normally used for grinding of talc.

Pebble
Compartment
Tube
Ring-roll

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Mechanical Operations
Energy consumed for crushing one ton of material ranges from __________ kWh.

4 to 5
0.01 to 0.1
2 to 3.5
0.5 to 1.5

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Mechanical Operations
Which of the following comes in the category of primary crusher for hard and tough stone?

Cone crusher
None of these
Gyratory crusher
Jaw crusher

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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

Differential wettability
Density separation
Size
Volatile matter content

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