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Mechanical Operations

Mechanical Operations
To remove dirt from the flowing fluid, we use a

Strains
Clarifier
Gravity settler
Coagulant

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Mechanical Operations
Trommels are revolving screens which normally operate in the range of __________ rpm.

43832
60 - 75
40 - 50
15 - 20

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Mechanical Operations
For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid?

None of these
Blake-Plummer equation
Leva
Kozney-Karman equation

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Mechanical Operations
Laminar flow region is said to exist during agitation of a liquid in an agitator, when the value of Reynolds number is

>10
>100

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Mechanical Operations
If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the

Dispersion
Flocculation
Centrifugation
Sedimentation

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Mechanical Operations
The maximum slope of a belt conveyor can be

15°
45°
60°
30°

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