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Mechanical Operations

Mechanical Operations
Filtration of water in a paper mill is done by a/an __________ filter.

Sparkler
Plate and frame
Vacuum leaf
Open sand

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Mechanical Operations
__________ mill is not a revolving mill.

Compartment
Cage
Pebble
Tube

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Mechanical Operations
Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m)

3.6 V.W. ρ
3.6 W.Dr.ρ
3.6 V.W.Dr/ρ
3.6 V.W.Dr.ρ

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Mechanical Operations
Mixing of plastic solids is generally facilitated by

Kneading
Mastication
None of these
Dispersion

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Mechanical Operations
The capacity of a pneumatic conveying system depends upon the

Bulk density of materials
All of these
Pressure of the conveying air
Diameter of the conveying line

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Mechanical Operations
Ribbon blenders are exclusively meant for

Bath mixing
Blending miscible liquids
Continuous mixing
Non-flowing powder and thin pastes

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