A. Collector
B. Frother
C. Modifier
D. Activator
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 - Pine oil used in froth floatation technique acts as a/an_____________________?
A. Collector
B. Modifier
C. Frother
D. Activator - Pine oil and Cresylic acid are used as ______________ in the froth floatation process?
A. Frother
B. Collector
C. Depressor
D. Conditioner - Froth floatation is the most suitable for treating ____________________?
A. Iron ores
B. Sulphide ores
C. Quartzite
D. None of these - Xanthates are used in the froth floatation process as a/an _______________________?
A. Conditioner
B. Frother
C. Collector
D. Activator - Which of the following is not used as a surface active agent in a flocculation operation ?
A. Sodium silicate
B. Quartz
C. Lime
D. Alumina - Separation of materials into products based on the difference of their sizes is called___________________?
A. Sizing
B. Sorting
C. Classification
D. Flocculation - The most suitable equipment for removing the fine dust particle (< 1 micron dia.) from air below its dew point will be a/an______________?
A. Bag filter
B. Electrostatic precipitator
C. Cyclone separator
D. Wet scrubber - A cottrell precipitator makes use of the ______________ for dusty air cleaning?
A. Electric spark
B. Corona discharge
C. Alternating current
D. None of these - Close circuit grinding by a ball mill with air sweeping employs a _______________________?
A. Classifier
B. Cyclone separator between mill & classifier
C. Both A. & B.
D. Neither A. nor B.
