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Mechanical Operations

Mechanical Operations
Which of the following is not a part of the Blake jaw crusher?

Pitman
Check plates
Toggles
Hanger

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Mechanical Operations
A. __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end.

Rod
Tube
Compartment
Pebble

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Mechanical Operations
Mesh indicates the number of holes per

Square inch
Linear inch
Square foot
Linear foot

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Mechanical Operations
The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake)

∝ ΔP
Independent of ΔP
∝ 1/ ΔP
∝ √ΔP

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Mechanical Operations
In filtration, the use of 'filter aid' helps in

Enhancing the cake porosity in case of a dense impermeable cake
Accelerating the rate of filtration
Deplugging the filter medium
Reducing the filtration pressure

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Mechanical Operations
Mixer used for rubber compounding is

Pug mill
Banbury internal mixer
Muller mixer
Mixer-extruder

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