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Mechanical Operations

Mechanical Operations
Grinding characteristic of a material is given by its

Angle of repose
Shatter index
HGI
Abrasion index

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Mechanical Operations
Traces of liquid tar fog present in coke oven gas is separated using

Electrostatic precipitator
None of these
Cyclone separator
Strainer

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Mechanical Operations
Reduction ratio of crushers is the

Ratio of feed opening to discharge opening
None of these
Ratio of discharge opening to feed opening
Determining factor for minimum dia of the feed and the product

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Mechanical Operations
Trommels are revolving screens which normally operate in the range of __________ rpm.

15 - 20
43832
40 - 50
60 - 75

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Mechanical Operations
Filter medium resistance is important during the __________ of filtration.

None of these
Final stages
Early stages
Entire process

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Mechanical Operations
For classification of potable (drinking) water, we use a __________ filter.

Gravity sand
Plate and frame
Rotary vacuum
Vacuum leaf

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