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Mechanical Operations

Mechanical Operations
Which of the following is not a cutting machine?

Dicers
Knife cutters
Tube mills
Slitters

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Mechanical Operations
To remove very small amount of tiny solid impurities from liquid, we use a

Centrifugal filter
Vacuum filter
Coagulant
Pressure filter

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Mechanical Operations
200 mesh seive size corresponds to __________ microns.

74
24
154
200

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Mechanical Operations
For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns.

50
500
5000
5

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Mechanical Operations
A cottrel precipitator makes use of the __________ for dusty air cleaning.

Electric spark
Corrona discharge
None of these
Alternating current

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Mechanical Operations
Which of the following is not an industrial screening equipment?

Trommel
Vibrating screen
Grizzly
Sharpies centrifuge

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