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Mechanical Operations

Mechanical Operations
A __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream.

Clarifier
Thickener
Strainer
Classifier

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Mechanical Operations
Chance process is used for the

Concentration of iron ore
Concentration of pyrites
Cleaning of coal
Water treatment

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Mechanical Operations
To get ultrafine particles, the equipment used is a

Ball mill
Rod mill
Fluid energy mill
Hammer crusher

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Mechanical Operations
What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls?

32°
46°
16°
40°

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Mechanical Operations
Balls for ball mills are never made of

Lead
Alloy steel
Forged/cast steel
Cast iron

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Mechanical Operations
The inlet pressure in a constant rate filtration

Increases continuously
Decreases gradually
None of these
Remains constant

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