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Mechanical Operations

Mechanical Operations
Traces of solids are removed from, liquid in a

Sparkler filter
Classifier
Rotary vacuum filter
Clarifier

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Mechanical Operations
In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the

Square root of the velocity
Square of the viscosity
Washing time only
Filtration time only

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Mechanical Operations
Dry powdery solid materials are transported by a __________ conveyor.

Belt
Bucket
Screw
None of these

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Mechanical Operations
Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity?

Raschig rings
Sphere
Cylinder (L/D = 1)
Cube

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Mechanical Operations
Stamp mills are generally used for crushing

Talc
Gold ores
Iron ores
Diamond

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

Density
Viscosity
Surface tension
Thermal conductivity

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