1. . Concentration separates:
(A) Gangue from value
(B) Value from gangue
(C) Oxides
(D) None of these
2. . Metal concentrate is separated by means of:
(A) Gravity only
(B) Flotation only
(C) Flotation or magnetism
(D) Gravity, flotation or magnetism
3. . Sink-float system uses ________ as flotation medium:
(A) Acid
(B) Alcohol
(C) Water
(D) None of these
4. . Flotation method uses:
(A) Acid
(B) Alcohol
(C) Water
(D) None of these
5. . Agglomeration is the process of:
(A) Increasing iron content in ores
(B) Improving physical structure
(C) Magnetism
(D) None of these