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Mechanical Operations

Mechanical Operations
The unit of specific cake resistance is

Gm/cm²
Gm/gm
Cm/gm²
Cm/gm

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Mechanical Operations
Filter medium resistance is that offered by the

Filter cloth and the embedded particle collectively
None of these
Filter cloth
Embedded particles in the septum

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Mechanical Operations
Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

Either A, B or C
Unblanced fly wheels
Electromagnets
Cams or eccentric shafts

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Mechanical Operations
For spheres, volume shape factor is given by

π(=A/D²)
π/6(=V/D³)
2π(=2A/D²)
AD/V

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

N ∝ 1/√D
N ∝ √D
N ∝ D
N ∝ 1/D

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Mechanical Operations
Separation of materials into products based on the difference of their sizes is called

Sorting
Flocculation
Classification
Sizing

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