Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 0.5 2.76 1 0.66 0.5 2.76 1 0.66 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill. Both A & B Hammer Cage Neither A nor B Both A & B Hammer Cage Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocal of sphericity is termed as the Surface area per unit mass Sauter diameter Specific surface ratio Shape factor Surface area per unit mass Sauter diameter Specific surface ratio Shape factor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultracentrifuges running at speeds upto 100000 rpm is normally used for the Separation of cream from milk Concentration of rubber latex Dewaxing of lubricating oil Separation of isotopes based on their density or molecular weights difference Separation of cream from milk Concentration of rubber latex Dewaxing of lubricating oil Separation of isotopes based on their density or molecular weights difference ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sulphuric acid mist is arrested by using a __________ scrubber. Venturi Co-current Hollow wet Packed wet Venturi Co-current Hollow wet Packed wet ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultrafine grinders operate principally by Impact Cutting action Attrition Slow compression Impact Cutting action Attrition Slow compression ANSWER DOWNLOAD EXAMIANS APP
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