Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
Section 2 - Mineral Exploration and Mining
|
|
|
1.
|
Placer deposits are surface deposits concentrated by
a. | surface mining. | b. | subsurface mining. | c. | movement of wind and
water. | d. | evaporation and condensation. |
|
|
|
2.
|
Which of the following would not likely be mined using solution
mining?
a. | gypsum | b. | potash | c. | salt | d. | sulfur |
|
|
|
3.
|
The first step in finding an ore deposit is
a. | finding placer deposits. | b. | smelting. | c. | testing the salt
content of rocks. | d. | exploring rock formations for
mineralization. |
|
|
|
4.
|
About ____________ percent of the world’s salt comes from the solar
evaporation process.
|
|
|
5.
|
A quarry could also be called
a. | an open pit. | b. | the overburden. | c. | a
longwall. | d. | a pillar. |
|
Matching
|
|
|
Section 2 - Mineral Exploration and Mining
Choose the letter of
the term or phrase that best matches the description.
a. | dredge | d. | overburden | b. | rooms | e. | slag | c. | flux |
|
|
|
6.
|
a material that bonds with impurities and separates them from molten metal
during smelting
|
|
|
7.
|
a floating barge on which buckets fixed on a conveyor excavate
sediments
|
|
|
8.
|
rocks that cover coal seams near the surface
|
|
|
9.
|
a layer of impurities that forms atop molten metal during smelting
|
|
|
10.
|
a network of entries in coal mines
|
