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Mechanical Operations

Mechanical Operations
Basic slag is not ground in

Ball mills
Compartment mills
Tube mills
Jaw crushers

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Mechanical Operations
Which of the following is not an ultrafine grinder (colloid mill)?

Hammer mills with internal classification
Agitated mills and fluid energy mills
Toothed roll crusher
Micronizers

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Mechanical Operations
Optimum ratio of operating speed to critical speed of a trommel is

1.33-1.45
1.5-2.5
0.33-0.45
0.5-2

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Mechanical Operations
Feed size of ≥ 25 cms can be accepted by

Rod mill
Fluid energy mill
Ball mill
Jaw crusher

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Mechanical Operations
Maximum size reduction in a ball mill is done by the, __________ action.

Compression
Impact
Cutting
Attrition

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Mechanical Operations
Diatomaceous earth is a/an

Filter aid
Filter medium
Explosive
Catalyst

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