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Mechanical Operations

Mechanical Operations
For separation of sugar solution from settled out mud, we use a __________ filter.

Rotary drum vaccum
Plate and frame
Centrifugal
Sparkler

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Mechanical Operations
A suspension of glass beads in ethylene glycol has a hindered settling velocity of 1.7 mm/s, while the terminal settling velocity of a single glass bead in ethylene glycol is 17 mm/s. If the Richardson-Zaki hindered settling index is 4.5, the volume fraction of solids in the suspension is

None of these
0.1
0.4
0.6

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Mechanical Operations
Highly viscous liquids & pastes are agitated by

Multiple blade paddles
None of these
Turbine agitators
Propellers

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Mechanical Operations
Which of the following is a fine crusher?

Dodge jaw crusher
Blake jaw crusher
Toothed roll crusher
Gyratory crusher

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Mechanical Operations
__________ baffles are provided in ball mills.

Horizontal
No
Only two
None of these

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Mechanical Operations
As particle size is reduced

Screening becomes progressively easier
None of these
Capacity and effectiveness of the screen is increased
Screening becomes progressively more difficult

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