Mechanical Operations Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill. Both A & B Hammer Neither A nor B Cage Both A & B Hammer Neither A nor B Cage ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are Silicates & phosphates Bi-carbonates Sulphates Carbonates Silicates & phosphates Bi-carbonates Sulphates Carbonates ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pick out the material having minimum Rittinger's number. Calcite Pyrite Quartz Galena Calcite Pyrite Quartz Galena ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'? Panning None of these Tabling Spiralling Panning None of these Tabling Spiralling ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Specific surface area is the surface area of a unit __________ of materials. Neither A nor B Weight Volume Either A or B Neither A nor B Weight Volume Either A or B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cumulative analysis for determining surface is more precise than differential analysis, because of the Assumption that all particles in a single fraction are equal in size, is not needed None of these Assumption that all particles in a single fraction are equal in size Fact that screening is more effective Assumption that all particles in a single fraction are equal in size, is not needed None of these Assumption that all particles in a single fraction are equal in size Fact that screening is more effective ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS