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Mechanical Operations

Mechanical Operations
For the transportation of ultrafine particles, the equipment used is a........conveyor.

Screw
Belt
None of these
Pneumatic

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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.

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

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Mechanical Operations
Gelatinous solid (which plug the septum) can be filtered by a __________ filter.

Sparkler
Plate and frame
Vacuum leaf
Precoat

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Mechanical Operations
Which of the following screens has the maximum capacity?

Grizzlies
Vibrating screen
Shaking screen
Trommels

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Mechanical Operations
For benefication of iron ore, the most commonly used method is

Froth floatation
Jigging & tabling
None of these
Flocculation

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Mechanical Operations
Use of grinding aids results in the

Both A & B
Finer products
Neither A nor B
Enhanced production rate

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