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Mechanical Operations

Mechanical Operations
Moore filter is a __________ filter.

Rotary
Press
Leaf
Sand

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

Slat or drag
Flight
Ribbon
Screw

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Mechanical Operations
Range of compressibility co-efficient of the commercial compressible cake obtained in filtration operation is

0.1 to 0.3
0.01 to 0.1
0.2 to 0.8
0.2 to 0.4

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Mechanical Operations
With increase in drum speed, in a rotary drum filter, the filtration rate

Is not affected
Increases
Decreases
Increases linearly

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Mechanical Operations
Rittinger number which designates the new surface prduced per unit of mechanical energy absorbed by the material being crushed, depends on the

Ultimate strength of the material
All of these
Elastic constant of the material
State or manner of application of the crushing force

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Mechanical Operations
In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing.

Primary
Ultrafine
Fine
Secondary

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