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Mechanical Operations

Mechanical Operations
200 mesh seive size corresponds to __________ microns.

24
74
154
200

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Mechanical Operations
Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills.

Basic slags
Asbestos & mica
Metalliferrous ores
Non-metallic ores

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Mechanical Operations
Mixer used for rubber compounding is

Muller mixer
Mixer-extruder
Banbury internal mixer
Pug mill

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Mechanical Operations
Which of the following oxides is not present in hematite iron ore?

Titanium oxide
Calcium oxide
Manganese oxide
Cobalt oxide

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Mechanical Operations
Trommels employ __________ for screening of materials.

Woven wire screen
Punched plate
Fibrous cloth
None of these

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Mechanical Operations
Energy consumption in a crusher decreases with increase in the

All of these
Capacity of the crushing machine
Size of feed (at constant reduction ratio)
Size of the product (at constant feed size)

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