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Mechanical Operations

Mechanical Operations
__________ mills fall in the category of tumbling mills,

All of these
Compartment
Ball and pebble
Rod and tube

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Mechanical Operations
Which of the following is the most suitable for handling fibrous and dense slurries?

Turbine agitator
Propeller agitator
Radial propeller agitator
Cone type agitator

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Mechanical Operations
Laminar flow region is said to exist during agitation of a liquid in an agitator, when the value of Reynolds number is

>10
>100

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

Attrition
Impact
Compression
Cutting

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Mechanical Operations
The specific cake resistance for compressible sludges is a function of the pressure drop

Overall
Over cake
None of these
Over medium

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Mechanical Operations
Carbon black is pulverised in a

Gyratory crusher
Hammer crusher
Ball mill
Roll crusher

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