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Mechanical Operations

Mechanical Operations
Percentage of drum submerged in the slurry in case of rotary drum filter is

3
25
30
85

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Mechanical Operations
Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate)

1/R
All of these
1/μ
S

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Mechanical Operations
Moore filter is a __________ filter.

Rotary
Press
Sand
Leaf

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Mechanical Operations
__________ baffles are provided in ball mills.

None of these
No
Horizontal
Only two

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Mechanical Operations
Balls for ball mills are never made of

Cast iron
Forged/cast steel
Lead
Alloy steel

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Mechanical Operations
For coarse reduction of hard solids, use

Compression
Attrition
Impact
Cutting

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