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Mechanical Operations

Mechanical Operations
__________ is the most suitable for compounding rubber and plastic solids.

Banbery mixer
Charge can mixer
Pug mill
Pan mixer

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Mechanical Operations
Gravity settling process is not involved in the working of a

Dorr-thickener
Hydrocyclone
Classifier
Sedimentation tank

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Mechanical Operations
Which of the following can be most effectively used for clarification of lube oil and printing ink?

Precoat filter
Disc-bowl centrifuge
Sparkler filter
Sharpies supercentrifuge

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Mechanical Operations
As per Taggart's formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms )

93 LS
LS
250 LS
√LS

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Mechanical Operations
In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing.

Ultrafine
Secondary
Fine
Primary

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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

D
√d
D²
1/d

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