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Mechanical Operations

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

Grizzly
Trommel
Vibrating screen
Sharpies centrifuge

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Mechanical Operations
According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively).

(S/V)²p
(S/V)p
√(S/V)p
(S/V)f

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Mechanical Operations
Toothed roll crushers achieve size reduction by

Neither A nor B
Impact and attrition
Tearing (shear) and compression
Both A & B

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Mechanical Operations
Screen capacity is not a function of

Screening mechanism
Its openings size
Screening surface
Atmospheric humidity

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Mechanical Operations
Colloidal mills are used for __________ grinding.

Ultrafine
Coarse
Fine
Intermediate

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Mechanical Operations
Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately ?

Kick's law
None of these
Rittinger's law
Bond's law

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