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Mechanical Operations

Mechanical Operations
In froth floatation, chemical agent added to cause air adherence is called

Modifier
Activator
Frother
Collector

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Mechanical Operations
Gold ore concentration is mostly done using

Tabling
Elutriation
Jigging
Froth floatation

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Mechanical Operations
To get a fine talc powder from its granules, the equipment used is

Gyratory crusher
Roller crusher
Ball mill
Jaw crusher

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Mechanical Operations
Which of the following is used for primary crushing of very hard lumpy materials?

Ball mill
Toothed roll crusher
Gyratory crusher
Tube mill

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Mechanical Operations
The critical speed of a trommel (N) is related to its dia (D) as

N ∝ D
N ∝ 1/√D
N ∝ √D
N ∝ 1/D

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Mechanical Operations
During filtration operation, the filtrate encounters the resistance of the

All of these
Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter medium
Filter medium
Cake

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