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Mechanical Operations

Mechanical Operations
__________ is the most suitable for compounding rubber and plastic solids.

Pan mixer
Banbery mixer
Pug mill
Charge can mixer

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Mechanical Operations
Which of the following is not accomplished by agitation of liquids in agitators?

Dispersing gas in liquid
Blending of immiscible liquids
Dispersing immiscible liquid in form of emulsion
Suspending solid particles

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Mechanical Operations
Shell and leaf filter as compared to plate and frame filter

Entails less labor cost
Provides more effective washing
Facilitates filtration under higher pressure
All of these

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Mechanical Operations
During filtration operation, the filtrate encounters the resistance of the

Cake
Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter medium
Filter medium
All of these

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Mechanical Operations
Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively.

1000°C and 10 atm
200°C and 5 atm
1000°C and 500 atm
500°C and 50 atm

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Mechanical Operations
The energy consumed by a ball mill depends on

The density of the material being ground
Its ball load
All of these
Its speed

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