Mechanical Operations Run of mine (ROM) coal is crushed by a __________ for use in domestic ovens. Ball mill Jaw crusher Hammer crusher Tube mill Ball mill Jaw crusher Hammer crusher Tube mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The optimum moisture content in solids to be crushed/ground ranges from __________ percent. 15 to 20 10 to 15 8 to 10 3 to 4 15 to 20 10 to 15 8 to 10 3 to 4 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations General mechanism of size reduction in intermediate and fine grinder is by Compression Compression and tearing Impact and attrition Cutting action Compression Compression and tearing Impact and attrition Cutting action ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in drum speed, in a rotary drum filter, the filtration rate Increases Is not affected Decreases Increases linearly Increases Is not affected Decreases Increases linearly ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During agitation of liquids, the Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller All of these Froude number is independent for the curves between power number and Reynolds number in baffled system Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller All of these Froude number is independent for the curves between power number and Reynolds number in baffled system Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the Neither A nor B Both A & B Feed material Type of crushing machine Neither A nor B Both A & B Feed material Type of crushing machine ANSWER DOWNLOAD EXAMIANS APP
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