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Mechanical Operations

Mechanical Operations
__________ mills are termed as disintegrators.

Pebble
Compartment
Cage
All of these

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Mechanical Operations
For sizing of fine materials, the most suitable equipment is a

Trommel
Vibrating screen
Shaking screen
Grizzly

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Mechanical Operations
The capacity of a gyratory crusher is __________ that of a jaw crusher with the same gape, handling the same feed & for the same product size range.

Same as
10 times
5 times
2.5 times

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Mechanical Operations
The work index in Bond's law for crushing of solids has the following dimensions

KWh.m1/2/ton
KW/ton
No units (dimensionless)
KWh/ton

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Mechanical Operations
Sphericity of pulverised coal is

1
∞
>1

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Mechanical Operations
The material is crushed in a gyratory crusher by the action of

Attrition
Cutting
Compression
Impact

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