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Mechanical Operations

Mechanical Operations
Ultrafine grinders operate principally by

Impact
Attrition
Cutting action
Slow compression

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Mechanical Operations
Toothed roll crushers achieve size reduction by

Neither A nor B
Tearing (shear) and compression
Both A & B
Impact and attrition

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Mechanical Operations
In washing type plate and frame filter press, the ratio of washing rate to the final filtrate rate is

1/4
4
1
1/2

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Mechanical Operations
Ribbon blenders are exclusively meant for

Continuous mixing
Bath mixing
Blending miscible liquids
Non-flowing powder and thin pastes

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Mechanical Operations
Moore filter is a __________ filter.

Rotary
Sand
Leaf
Press

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Mechanical Operations
Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its

High power consumption in grinding
Poor grindability
None of these
Easier grindability

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