A. Panning
B. Spiralling
C. Tabling
D. None of these
Related Mcqs:
- 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 ?
A. Cresylic acid
B. Copper sulphate
C. Calcium carbonate
D. Sodium carbonate - Which of the following is not a non-metalliferous mineral ?
A. Calcite
B. Fluorspar
C. Quartz
D. Cassiterite - In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called _____________ is produced?
A. Concentrate
B. Tailing
C. Middling
D. None of these - Crushing of mineral particles is accomplished in a ‘cage mill’, when one or more alloy steel bars are revolved in opposite directions. It is a type of ______________ mill?
A. Impact
B. Roll
C. Vibratory
D. None of these - Fluid medium used in the classification technique of mineral beneficiation is_________________?
A. Air
B. Water
C. Either A. or B.
D. Neither A. nor B. - Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the___________________?
A. Coagulation
B. Flocculation
C. Sedimentation
D. Clarification - Reciprocal of sphericity is termed as the________________?
A. Specific surface ratio
B. Shape factor
C. Sauter diameter
D. Surface area per unit mass - _____________ mills are termed as impactors?
A. Hammer
B. Cage
C. Rolling-compression
D. None of these - The process by which fine solids is removed from liquids is termed as _____________________?
A. Decantation
B. Flocculation
C. Sedimentation
D. Classification - The process opposite to ‘dispersion’ is termed as the___________________?
A. Flocculation
B. Sedimentation
C. Filtration
D. None of these
