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 Copper sulphate Cresylic acid Sodium carbonate Calcium carbonate Copper sulphate Cresylic acid Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter medium resistance is important during the __________ of filtration. Early stages Entire process Final stages None of these Early stages Entire process Final stages None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Bucket elevators are not suitable for the vertical lifting of __________ materials. Small lumpy (e.g. grains and sand) Free flowing Sticky (e.g. clay paste) Fine (e.g. - 200 mesh size coal) Small lumpy (e.g. grains and sand) Free flowing Sticky (e.g. clay paste) Fine (e.g. - 200 mesh size coal) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cement clinker is reduced to fine size by a Ball mill Roll crusher Hammer mill Tube mill Ball mill Roll crusher Hammer mill Tube mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Fluid medium used in the classification technique of mineral beneficiation is Both A & B Water Neither A nor B Air Both A & B Water Neither A nor B Air ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gravity settling process is not involved in the working of a Dorr-thickener Sedimentation tank Classifier Hydrocyclone Dorr-thickener Sedimentation tank Classifier Hydrocyclone ANSWER DOWNLOAD EXAMIANS APP
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