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Mechanical Operations

Mechanical Operations
Which is the most suitable conveyor for transportation of sticky material?

Apron conveyor
Pneumatic conveyor
Belt conveyor
Screw conveyor

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Mechanical Operations
In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing.

Ultrafine
Primary
Fine
Secondary

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Mechanical Operations
Gravity stamp mill is meant for the __________ crushing.

Intermediate
Primary
Fine
Ultrafine

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Mechanical Operations
Which of the following gives the crushing energy required to create new surface ?

Fick's law
Taggarts rule
Rittinger's law
None of these

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Mechanical Operations
For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter (d) as

D²
√d
1/d
D

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Mechanical Operations
Diatomaceous earth is a/an

Explosive
Filter aid
Filter medium
Catalyst

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