A. Collector
B. Modifier
C. Frother
D. Activator
Related Mcqs:
- Pine oil and Cresylic acid are used as ______________ in the froth floatation process?
A. Frother
B. Collector
C. Depressor
D. Conditioner - 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 - Froth floatation is the most suitable for treating ____________________?
A. Iron ores
B. Sulphide ores
C. Quartzite
D. None of these - In froth floatation, chemical agent added to cause air adherence is called___________________?
A. Collector
B. Frother
C. Modifier
D. Activator - Xanthates are used in the froth floatation process as a/an _______________________?
A. Conditioner
B. Frother
C. Collector
D. Activator - Which of the following can be most effectively used for clarification of lube oil and printing ink ?
A. Sparkler filter
B. Pre-coat filter
C. Disc-bowl centrifuge
D. Sharpies super-centrifuge - Moisture can be removed from lubricating oil using_________________?
A. Tubular centrifuge
B. Clarifier
C. Sparkler filter
D. Vacuum leaf filter - A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is_________________?
A. 0.90 μm/s
B. 1 μm/s
C. 22.1 μm/s
D. 0.02 μm/s - The study on washability of coal is done by using the _____________ technique?
A. Tabling
B. Elutriation
C. Heavy media separation
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.
