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Mechanical Operations

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 achieves the least reduction ratio for a given feed size?

Gyratory crusher
Cone crusher
Jaw crusher
Roll crusher

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Mechanical Operations
Supporting legs of a plate and frame filter is normally made of

Cast iron
Stainless steel
Wooden plank
High speed steel

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Mechanical Operations
Production rate __________ with increased fineness, with a given energy input to the size reduction machine.

Increases
Remains unchanged
Decreases
May increase or decrease; depends on the machine

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Mechanical Operations
The reduction ratio for fine grinders is

As high as 100
44124
43961
20-40

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Mechanical Operations
__________ is a cohesive solid.

Sand
None of these
Wet clay
Wheat

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