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Mechanical Operations

Mechanical Operations
Which of the following may prove unsuitable for filtering volatile liquids?

Pressure filter
Centrifugal filter
Gravity filter
Vacuum filter

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Mechanical Operations
For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns.

500
5
50
5000

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

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

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Mechanical Operations
The sphericity of a solid particle of cubical shape is

π
(π/6)1/2
(π/6)1/3
π/3

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Mechanical Operations
Supporting legs of a plate and frame filter is normally made of

Cast iron
High speed steel
Wooden plank
Stainless steel

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Mechanical Operations
The capacity of a belt conveyor depends upon two factors. If one is the cross-section of the load, the other is the __________ of the belt.

None of these
Speed
Length
Thickness

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