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Mechanical Operations

Mechanical Operations
Hot, lumpy & abrasive materials are best transported by using a/an __________ conveyor.

Flight
Belt
Screw
Apron

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Mechanical Operations
For spheres, volume shape factor is given by

π(=A/D²)
2π(=2A/D²)
AD/V
π/6(=V/D³)

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Mechanical Operations
Chance process is used for the

Cleaning of coal
Concentration of iron ore
Concentration of pyrites
Water treatment

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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 )

250 LS
√LS
LS
93 LS

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Mechanical Operations
The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is

None of these
1.5
?2
1

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Mechanical Operations
Size reduction mechanism used in Jaw crushers is

Compression
Attrition
Cutting
Impact

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