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Mechanical Operations

Mechanical Operations
In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill.

50
70
35
85

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Mechanical Operations
Raw materials are charged in the iron blast furnace using

None of these
Screw conveyor
Skip hoist
Bucket elevator

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Mechanical Operations
Separation of materials into products based on the difference of their sizes is called

Flocculation
Sorting
Sizing
Classification

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Mechanical Operations
For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid?

None of these
Kozney-Karman equation
Blake-Plummer equation
Leva

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Mechanical Operations
Toothed roll crushers achieve size reduction by

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

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Mechanical Operations
__________ centrifuge is normally used in sugar mills.

Tubular bowl
Suspended batch basket
Perforated horizontal basket continuous
Disc-bowl

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