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Mechanical Operations

Mechanical Operations
Screen capacity is expressed in terms of

Tons/hr
Tons/hr-ft²
Both A & B
Tons/ft²

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Mechanical Operations
Horsepower required for a roll crusher is directly proportional to its

Neither A nor B
Reduction ratio
Capacity
Both A & B

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Mechanical Operations
Limestone is normally crushed in a

Hammer crusher
Tube mill
Ball mill
Roll crusher

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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

>100
>10

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Mechanical Operations
Temperature of the product during ultrafine grinding

Decreases
Increases
Remains constant
May increase or decrease ; depends on the material being ground

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Mechanical Operations
The controlling resistance in a rotary drum vacuum filter is the __________ resistance.

Filter medium
Piping
Cake
None of these

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