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Mechanical Operations

Mechanical Operations
__________ mill is not used for grinding wheat into flour and for milling of cereals & other vegetable products.

Pebble
Attrition
Buhrstone
Roller

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Mechanical Operations
Vibrating screens have capacity in the range of __________ tons/ft² .mm mesh size.

0.2 to 0.8
5 to 25
50 to 100
100 to 250

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Mechanical Operations
Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a __________ conveyor.

Screw
Ribbon
Slat or drag
Flight

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Mechanical Operations
Which of the following size reduction equipments employs mainly attrition for ultrafine grinding?

All of these
Jet mills
Micronizer
Fluid energy mill

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Mechanical Operations
Mass flow of granular solid (M) through a circular opening of dia, D follows

M ∝ D²
M ∝ D³
M ∝ √D
M ∝ D

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Mechanical Operations
A belt conveyor used for the transportation of materials can

All of these
Travel at a speed upto 300 metres/minute
Handle materials upto 5000 tons/hr
Run upto 1 km

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