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Mechanical Operations

Mechanical Operations
Limestone is normally crushed in a

Roll crusher
Ball mill
Hammer crusher
Tube mill

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Mechanical Operations
According to Taggart's rule for selecting between a gyratory crusher and a jaw crusher; the later should be used, if the hourly tonnage to be crushed divided by the square of the gape expressed in cm is less than

0.184
0.0184
1.84
0.00184

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Mechanical Operations
For transporting pasty material, one will use a/an

Bucket elevator
Belt conveyor
Apron conveyor
Screw colaveyor

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Mechanical Operations
During size reduction by a jaw crusher, the energy consumed decreases with the

None of these
Decreasing machine capacity
Decreasing size of product at constant size of feed
Increasing size of feed at constant reduction ratio

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Mechanical Operations
The most common filter aid is

Silica gel
Calcium silicate
Sodium carbonate
Diatomaceous earth

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Mechanical Operations
__________ balls capable of grinding the feed in a ball mill gives the maximum efficiency.

Cast iron
Maximum size
Minimum size
Elliptical

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