Mechanical Operations Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? Calcium carbonate Sodium carbonate Copper sulphate Cresylic acid Calcium carbonate Sodium carbonate Copper sulphate Cresylic acid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following achieves the least reduction ratio for a given feed size? Jaw crusher Gyratory crusher Roll crusher Cone crusher Jaw crusher Gyratory crusher Roll crusher Cone crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'? Tabling Panning None of these Spiralling Tabling Panning None of these Spiralling ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mixing of light fine powder such as insecticides is done by Impact wheels Kneader Banbery mixer Pug mill Impact wheels Kneader Banbery mixer Pug mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of solid particles based on their densities is called Clarification Dispersion Sizing Sorting Clarification Dispersion Sizing Sorting ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle). 6/D.p 2/D.p 4/D.p 12/D.p 6/D.p 2/D.p 4/D.p 12/D.p ANSWER DOWNLOAD EXAMIANS APP
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