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Mechanical Operations

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

Neither A nor B
Capacity
Both A & B
Reduction ratio

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Mechanical Operations
To remove dirt from the flowing fluid, we use a

Coagulant
Gravity settler
Strains
Clarifier

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Mechanical Operations
Which of the following is not used as a filter medium in case of corrosive liquids?

Glass cloth
Metal cloth of monel or stainless steel
Nylon
Cotton fabric

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Mechanical Operations
The filtrate flow rate in constant pressure filtration

May increase or decrease ; depends on the pressure
Continuously decreases
Continuously increases
Remains constant throughout

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Mechanical Operations
Basic slag is not ground in

Ball mills
Tube mills
Compartment mills
Jaw crushers

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Mechanical Operations
Sphericity of pulverised coal is

1
>1
∞

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