Mining refresher

Which of the following is not a stage in the life cycle of a mine

• Prospecting

• Exploration

• Planning

• Reclamation

Obsidian (#GOT reference) is a ______________ type of rock

• Igneous

• sedimentary

• metamorphic

• none of the above

Feasibility studies belongs to which stage in the life cycle of a mine

• Prospecting

• Exploration

• Exploitation

• Reclamation

which of the following is not a step in extraction of copper from copper sulphide?

• Froth Flotation

• Smelting

• Electrolysis

• Heap Leaching

which of the following falls under non-metallic mineral category?

• Limestone

• Gold

• Coal

• Copper

What is the name of solid waste that was produced during mining?

• Tailings
• Rocks 
• Minerals 
• Deposits

The process of heating an ore beyond its melting point and combining it with other substances is called

• smelting.

• dredging.

• tailing.

• frothing.

A rock formed from lava or magma is classified as

• igneous
• metamorphic
• sedimentary