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Mechanical Operations

Mechanical Operations
Which of the following is a fine crusher?

Toothed roll crusher
Blake jaw crusher
Gyratory crusher
Dodge jaw crusher

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Mechanical Operations
__________ are mixed using ribbon blenders.

Thick pastes
High viscosity liquids
Dry powders
Lumpy solids and low viscosity liquids

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Mechanical Operations
If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the

Sedimentation
Dispersion
Flocculation
Centrifugation

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Mechanical Operations
The unit of filter medium resistance is

Gm/cm⁻¹
Cm⁻¹
Gm⁻¹
Cm/gm⁻¹

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Mechanical Operations
The grinding in a hammer crusher takes place due to the

Attrition
Neither A nor B
Both A & B
Impact

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Mechanical Operations
Length/diameter ratio of a ball mill is

1.5
< 1
> 1
1

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