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Mechanical Operations

Mechanical Operations
Sphericity of pulverised coal is

∞
>1
1

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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
1/d
D
√d

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Mechanical Operations
__________ mill is not a revolving mill.

Cage
Compartment
Tube
Pebble

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Mechanical Operations
Diatomaceous earth is a/an

Catalyst
Explosive
Filter aid
Filter medium

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Mechanical Operations
Which of the follwoing mechanical conveyors does not come under the division 'scrapers'?

Drag conveyor
Flight conveyor
Ribbon conveyor
Bucket elevators

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Mechanical Operations
The filtrate flow rate in constant pressure filtration

Continuously decreases
May increase or decrease ; depends on the pressure
Remains constant throughout
Continuously increases

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