Topic: Underground Coal Mining Test
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Answers to Common Questions
how is underground coal mined?
There are two basic types of underground mining methods: room and pillar and longwall. In room and pillar mines, coal is removed by cutting rooms, or large tunnels, in the solid coal, leaving pillars of coal for roof support. Longwall minin... Read More »
Source: http://www.answers.com/topic/how-is-underground-coal-mined
How deep are underground coal mines?
we dont say a fix depth of underground mine becoz that is depends on geological conditions of the area where we mined and also depends the property of mineral which have to be mined. Companies engaged in this industry extract coal that lies... Read More »
Source: http://wiki.answers.com/Q/How_deep_are_underground_coal_mines
How to Find the Practice Test for the Coal Mines
Prairie State Energy Campus is a power plant that supplies power to about 2.5 million residents. While it's located in Illinois, these residents cover eight states altogether. Part of this power plant is a coal mine, which helps generate th... Read More »
Source: http://www.ehow.com/how_8619866_practice-test-coal-mines.html
More Common Questions
Answers to Other Common Questions
It forbade the employment of boys under the age of 10 yrs, and banned employment of women of any age. wrong^ the correct answer is forbade the employment of women and boys under 10 years of age in the mines!!
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Source: http://wiki.answers.com/Q/When_the_1842_Coal_Mines_Act_forbade_th...
There are over 1,000 surface mines and more than 1,000 underground m...
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Source: http://www.chacha.com/question/how-many-underground-coal-mines-ar...
Why do you think that it is not obtained that way? Coal has been dug from underground for hundreds of years. It still is in many places. When coal is near the surface, then surface mining procedures can be used. The kind of mining used depe...
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Source: http://answers.yahoo.com/question/index?qid=20111101053829AAllhPc
The United States has been endowed with a wealth of natural...
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The city of Centralia Pennsyl...
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There are 117 named coal s...
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There are many reasons underground coal mining is dangerous. Underground mining in general (for example gold or copper) has its hazards - lack of fresh air, confined areas, noisy, poor access, poor ventilation, dark, dirty, slippery, wet, a...
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Source: http://answers.yahoo.com/question/index?qid=20060714170526AADjkJO
