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Mechanical Operations

Mechanical Operations
Screen capacity is proportional to (where, S = screen aperture)

S²
√S
S
1/S

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Mechanical Operations
The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size )

1/s . c
S . c
C/s
S/c

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Mechanical Operations
Moisture can be removed from lubricating oil using

Vacuum leaf filter
Tubular centrifuge
Sparkler filter
Clarifier

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Mechanical Operations
For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is

1125
2250
230
460

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Mechanical Operations
Vacuum is applied in __________ zone, in case of a general type continuous rotary drum vacuum filter.

Filtering
Drying
Washing
All of these

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Mechanical Operations
The equivalent diameter of channel of a constant non-circular cross-section of 3 cm by 6 cm will be __________ cms.

12
8
20
2

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