Task 2 Match words to form appropriate word combinations

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Exam test

Surface mining

Task 1. Choose the best answer

1. Surface mining is

a. the process of digging big holes

b. a form of mining in which the soil and rock covering mineral deposits are removed

c. a form on underwater mining

2. Open-pit mining is

a. exactly what the name implies: a big hole (or pit) in the ground

b. the method of processing ores

c. the process of excavating hard rocks

3. High wall mining is

a. the process of excavating overburden

b. the process of extracting diamonds

c. combination of surface mining techniques and sub-mining techniques

4. Dredging is

a. the method of mining copper

b. the process of mining materials from the bottom of a body of water

c. the technique of mining silver

5. Strip mining is

a. the process of removing a thin strip of overburden above a desired deposit dumping the removed overburden behind the deposit, creating the second parallel strip in the same manner

b. the process of digging shafts and tunnels

c. the process of extracting placer deposits

6. Mountaintop removal mining involves

a. removing overburden lying above the desired deposits

b. removing the top of steep mountains to expose desired deposits below

c. removing snow layers to expose desired deposits below

7. Economic goal in surface mining is

a. to produce as much as possible of marketable products

b. to reduce employees salaries

c. to remove the least amount of material while to gaining the greatest return on investment by processing the most marketable mineral product

8. Overburden is

a. hard rock overlying ore body

b. waste rock consisting of consolidated and unconsolidated material that must be removed to expose the underlying ore body

c. loose material overlying ore body

9. The differences between open-pit and strip mining are

a. methods of extracting ores

b. methods of selecting equipment

c. the location of the ore body and the mode of mechanical extraction

10. Quarrying is

a. a term used to describe a specialized open-pit mining techniques

b. the method of processing ore

c. mining loose rocks

Task 2 Match words to form appropriate word combinations

Task 3 Choose the best answer, use words and phrases from the box

a. hydro-jet assistance and hydro jet,

b. the hopper,

c. mechanical drilling and blasting,

d. the clam shell, e. mineral processing, f. solution mining methods,

g. comminution,

h. explosives,

I. jaw crushers,

j. cone crushers

What do we call:

1. the first steps in extracting ore from most open-pit mines and the most common method used to remove hard rock overburden

2. the most preferable method of loosening hard rock

3. the container into which the filled buckets dump their load

4. the dredge that is characterized by a large single bucket operating at the end of cables

5. the devices that are best suited to digging relatively small-sized loose materials such as sand, gravel, marine shell deposits and unconsolidated overburden

6. the first process that most ores undergo after mining

7. the process that begins crushing the ore to a certain size and finishes by grinding it into powder

8. the devices used in the first stage of crushing ores

9. the devices used in the second stage of crushing ores

10. mining methods employed to extract soluble ores

Task 4 Sort these words out under the headings

1. clam shell dredge

2. crushing

3. loading

4. conveyance

5. bucket-line dredge

6. grinding

7. mineral processing

8. haulage

9. autogenous and semi-autogenous mill

10. cone crushers

11. drive sprocket

12. treatment plant

13. drilling

14. jaw crushers

15. blasting

16.roller

17. idler sprocket

18. cylinder mill

19. grinding mill

20.dredge

21. hopper

22. bucket ladder