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Mechanical Operations

Mechanical Operations
Traces of liquid tar fog present in coke oven gas is separated using

Strainer
Electrostatic precipitator
Cyclone separator
None of these

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Mechanical Operations
Xanthates are used in the froth floatation process as a/an

Collector
Conditioner
Activator
Frother

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Mechanical Operations
For sizing of fine materials, the most suitable equipment is a

Grizzly
Vibrating screen
Trommel
Shaking screen

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Mechanical Operations
For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter (d) as

D²
1/d
√d
D

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Mechanical Operations
__________ mill is not a revolving mill.

Compartment
Tube
Cage
Pebble

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Mechanical Operations
Energy consumption in a crusher decreases with increase in the

Size of the product (at constant feed size)
Capacity of the crushing machine
Size of feed (at constant reduction ratio)
All of these

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