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Mechanical Operations

Mechanical Operations
Highly viscous liquids & pastes are agitated by

None of these
Turbine agitators
Propellers
Multiple blade paddles

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Mechanical Operations
Cyclones are used primarily for separating

Solids from fluids
Solids from solids
Solids
Liquids

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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

1/d
√d
D²
D

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Mechanical Operations
Which of the following is not a non-metalliferous mineral?

Quartz
Cassiterrite
Fluorspar
Calcite

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Mechanical Operations
In screen analysis, the notation +5 mm/-10 mm means particles passing through

10 mm screen and retained on 5 mm screen
Neither 5 mm nor 10 mm screen
Both 5 mm and 10 mm screens
5 mm screen and retained on 10 mm screen

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Mechanical Operations
Power consumption during turbulent flow in agitation tank is proportional to the __________ of the liquid.

Surface tension
Thermal conductivity
Density
Viscosity

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