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Mechanical Operations

Mechanical Operations
The term 'angle of nip' is concerned with the operation of the __________ crushers.

Roll
Jaw
None of these
Gyratory

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Mechanical Operations
Size reduction of __________ is accomplished in steam heated rollers and roll crushers.

Hard rubber
Waxes
Resins
Gums

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Mechanical Operations
For the preliminary breaking of hard rock, we use a

Gyratory crusher
Squirrel-cage disintegrator
Ball mill
Tube mill

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Mechanical Operations
Filter medium resistance is that offered by the

None of these
Embedded particles in the septum
Filter cloth
Filter cloth and the embedded particle collectively

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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
During size reduction by a jaw crusher, the energy consumed decreases with the

Decreasing size of product at constant size of feed
None of these
Increasing size of feed at constant reduction ratio
Decreasing machine capacity

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