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Mechanical Operations

Mechanical Operations
Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a

Banbury mixer
Pug mill
Mixer-extruder
Muller mixer

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Mechanical Operations
During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration

When half the filtrate has been obtained
At the end of filtration
At time zero
At the end of filtration, but decreases with time subsequently

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Mechanical Operations
Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about

2 to 5°
5 to 10°
1 to 2°
10 to 15°

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Mechanical Operations
To remove dirt from the flowing fluid, we use a

Strains
Gravity settler
Clarifier
Coagulant

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Mechanical Operations
Sphericity of raschig ring (whose length and diameter are equal) is

2
1
>1

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Mechanical Operations
Which of the following is the most suitable for handling fibrous and dense slurries?

Radial propeller agitator
Turbine agitator
Propeller agitator
Cone type agitator

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