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Mechanical Operations

Mechanical Operations
Separation of materials of the same density based on their sizes by using then-different rates of flow is called

Sizing
Elutriation
Flocculation
Sorting

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Mechanical Operations
Hot, lumpy & abrasive materials are best transported by using a/an __________ conveyor.

Flight
Screw
Belt
Apron

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Mechanical Operations
Which of the following is a vacuum filter?

Filter press
Tank filter (Nutsch filter)
Batch basket centrifuge
Rotary disc filter

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Mechanical Operations
Optimum ratio of operating speed to critical speed of a trommel is

1.33-1.45
0.33-0.45
0.5-2
1.5-2.5

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Mechanical Operations
Which of the following screens has the maximum capacity?

Grizzlies
Trommels
Vibrating screen
Shaking screen

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Mechanical Operations
Reduction ratio of crushers is the

Ratio of discharge opening to feed opening
Ratio of feed opening to discharge opening
Determining factor for minimum dia of the feed and the product
None of these

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