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Mechanical Operations

Mechanical Operations
__________ conveyor is the most suitable for long distance transportation of cold, non-abrasive granular/irregular shape/fine materials.

Apron
Belt
Bucket
Screw

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Mechanical Operations
Apron conveyors are used for

Heavy loads & short runs
Small loads & long runs
Heavy loads & long runs
None of these

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Mechanical Operations
For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as

Np ∝ √NRe
Np ∝ 1/NRe
Np ∝ NRe
Np → constant

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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 )

LS
250 LS
√LS
93 LS

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Mechanical Operations
Xanthates are used in the froth floatation process as a/an

Collector
Conditioner
Activator
Frother

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Mechanical Operations
Pick out the material having minimum Rittinger's number.

Calcite
Quartz
Galena
Pyrite

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MORE MCQ ON Mechanical Operations

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