Hydraulic Separation Method

Q.

Write a note on froth floatation?

Q. Froth floatation is mainly based on the principle of preferential wetting of ore and gangue particles.

1. True
2. False

Q.

Give the principle of:

1. Hydrolytic method
2. Froth floatation
3. Electromagnetic separation

Q.

In the froth flotation process, stabilizers are used to attach ore particles to air bubbles in the froth.

1. False

2. True

Q. Froth floatation is mainly based on the principle of preferential wetting of ore and gangue particles.

1. True
2. False

Q. What property is the method of froth floatation based on?

1. Difference in magnetic property
2. Difference in boiling points
3. Difference in wettability
4. Difference in density

Q. Which of the following methods is used when the ore particles have different densities?

1. handpicking
2. washing
3. magnetic separation
4. froth flotation

Q. Levigation takes advantage of the difference in the specific __ of the ore and the gangue particles

1. weight
2. mass
3. gravity
4. volume

Q. Levigation is done on the basis of difference in the ____ of the ore and the gangue particles.

1. solubility
2. specific gravity
3. magnetic properties
4. texture

Q. During gravity separation, lighter particles settle down at the bottom while heavier particles get washed away.

1. False
2. True

Q. Gravity separation is based on the difference in the ____ of the ore and the gangue particles.

1. solubility
2. density
3. magnetic properties
4. texture

Q. Gravity separation is also called ___ .

1. levitation
2. magnetic seperation
3. levigation
4. distillation

Q.

In an ore, the gangue particles are highly denser than ore particles. The process used for concentration of the ore is ___.

1. froth floatation

2. leaching

3. magnetic separation

4. gravity separation

Q. Gravity separation is also called ___ .

1. levitation
2. levigation
3. magnetic seperation
4. distillation

Q.

Levigation is used for cleaning of the ore before metallurgical processes.

1. True

2. False

Q. Gravity separation technique is used when the ore and impurities have different specific gravities.

1. True
2. False