MNG 230 FINAL Exam Questions And Verified Answers Graded A+.

Mining accounts for approximately ______ of the US economy - correct answer 15% In the US, which fuel minerals do we mine - correct answer coal, uranium a labor union found at many unionized mine sites is - correct answer United Mine Workers of America (UMWA) A major trade association in the mining industry is - correct answer National Stone, Sand, and Gravel Association (NSSGA) A labor union engages in many activities, including: - correct answer working with companies on matters of mutual interest advocating for the interests of its members which statement about us mining laws is true - correct answer in most cases, if a state's regulation is less protective than the corresponding federal regulation, then a mine will be required to comply with the federal regulation a trade association engages in many activities including - correct answer working with congress on proposed legislation that would affect its members providing technical services of broad interest to its members the rank of a coal is based on what - correct answer heat value percent fixed carbon what is the fundamental difference between a maceral and a mineral - correct answer one is organic and the other is inorganic currently there are fewer than ten uranium-mining operations in the US - correct answer true what is the goal if mineral processing - correct answer to concentrate the minerals of interest to beneficiate the valuable components of the ore to liberate the minerals of interest choose the industrial minerals from this list - correct answer salt talc phosphate trona acme mining company has just moved into your small, scenic community. which of the following ideas might the company employ to build a positive relationship with the people and community in which they are located - correct answer hold an acme mine community day with a cookout, mine tours, and an explanation of sound mining practices which of these key federal agencies routinely has at least one inspector at each mining operation multiple times per year and in large mines this agency often has at least one inspector on site nearly every single day - correct answer MSHA match the coal rank to its descriptors - correct answer anthracite- this is the highest rank of coal bituminous- rank of coal characterized by a heating value and is the most common type of coal used in electricity generation in US subbituminous- not the greatest in the heating value department, but not the worst of the four lignite- lowest grade of coal with least amount of carbon match the rank of coal to its descriptors - correct answer anthracite- hard, brittle, black, shiny called hard coal bituminous- looks shiny and smooth but close look shows many layers subbituminous- looks dull lignite- known as brown coal choose the answer that shows the 5 stages of mining in the correct order - correct answer prospecting, exploration, development, exploitation, reclamation match the activities to the correct stages of mining - correct answer beneficiation activities- exploitation leaving area free of safety and environmental hazards- reclamation preparing for extraction of the ore/material- development finding geologic anomalies- prospecting a problem in risk management- exploration match the activities to the correct stages of mining - correct answer returning to the mine site to its original condition- reclamation using mining equipment to extract the ore- exploitation using accumulated knowledge to narrow the search- prospecting estimating the quantity of the orebody- exploration conducting a feasibility study- development as related to mining, important acts within the category of environmental protection laws are - correct answer the clean water act the endangered species act mining companies are not legally bound to comply with administrative regulations and will not face civil or criminal action for noncompliance - correct answer false choose the correct statement - correct answer title 30 contains regulations related to the mineral resources if you've acquired the rights to mine on private land, what mineral rights are automatically transferred tp you - correct answer only agreed upon minerals the owner of a patented claim can use the land for - correct answer any legal purpose choose true statements about unpatented claims - correct answer gives the right to explore and mine only valid during active work land can be reverted back to the public domain which federal us agency is responsible for administering the general mining law of 1872 - correct answer the bureau of land management what must you do if you find historically or culturally significant items of structures on the land on which you have the right to mine - correct answer protect findings laws are passed by the government, may have provisions with which mining companies must comply, and often direct administrative agencies to develop specific regulations to govern how the laws will be enforced - correct answer true rights to prospect, explore, and mine for minerals that are not classified as locatable on public lands are conveyed by - correct answer leasing the land from the bureau of land management which of the following is false - correct answer an act is a bill that's been passed by the legislature but has not yet been signed into law the amendment to the general mining law of 1872 known as the mineral leasing act of 1920 made a very important change to the 1872 law - correct answer it removed several minerals from the list of those that could be classified as locatable under the original law the general mining law of 1872 is still controversial today because it allows for the depletion of the supply of valuable minerals - correct answer false the general mining law of 1872 defined locatable minerals as the types of minerals that could be claimed under the law - correct answer cinnabar copper silver gold which of the following is true - correct answer a lode is a hard rock vein choose the industrial minerals from the list - correct answer salt trona talc phosphate the economic value of mining in the us is about - correct answer $2.5 trillion what is the difference between a mineral resource and a mineral reserve - correct answer a resource is a potentially feasible deposit and a reserve is that portion of the deposit that can be mined economically at a point in time during the exploration stage the goal is to - correct answer define the deposit in as much detail as is practicable match the following terms with the definition - correct answer mineral resource- a concentration of ore in the earth's crust of sufficient size that may be economically recoverable measured mineral resource- high confidence in the estimate based off of sufficient sampling to ensure geologic and grade continuity between holes indicated mineral resource- reasonable confidence that estimate is accurate, but hole spacing too wide to confirm grade and geologic continuity inferred mineral resource- limited sampling and low confidence in what's there- the estimate comes from extrapolation mineral reserve- the portion of the mineral resource that can be mined economically in time proved mineral reserve- the portion of a measured mineral resource that can be mined economically in time identify the true statements regarding drilling for the purpose of sampling an orebody - correct answer cores provide additional detail on the structural features of the deposit not available with cuttings cuttings are useful to determine the grade of the ore the most important outcome of a good sampling plan is - correct answer to acquire accurate estimates on the size and grade of the deposit the real difference between a probable mineral reserve and a proved mineral reserve is the degree of certainty in the resource estimate - correct answer true why is knowledge of the geology associated with the target mineral useful - correct answer to give you an idea of the shape of the orebody so that you can design effective sampling the cutoff grade has been calculated for a specific mine. however, the cutoff grade will change in the future if - correct answer the selling price of the refined product increases dilution increases recovery in the processing plant increases why is it necessary to calculate an area or volume of influence - correct answer because the sample from each drill will represent a different portion of the orebody based on its location use the following table to calculate the average grade of the deposit - correct answer 4.94% you have to remove 30 tons of waste to mine 10 tons of ore. the density of the waste is 40 cubic yards/ton. Find the overall stripping ratio in cubic yards per ton - correct answer 4 yd/ton which of the following statements is true - correct answer a significant amount of capital must be available first to open a mine and an engineering study is done before the opening of the mine factors that determine the mining method include - correct answer size of orebody topography attitude shape of orebody why is it important to understand the mechanical properties of the mined material before it is mine - correct answer the strength of the ore generally affects the choice mining method mining and subsequent mineral processing challenges can be determined by looking at what characterisitics - correct answer mineralogy and genesis of the orebody which type of study would be completed to facilitate the purchase of equipment - correct answer definitive the main purpose of the feasibility study is to - correct answer decide if the mine should be built or not after years of hucksters and shysters attempting to sell worthless mineral deposits, major mining countries developed rigorous standards to ensure that conflicts of interest are clearly disclosed, the individuals doing the study meet certain minimum qualification, and to ensure - correct answer common definitions are used in reporting technical information according to the NI 43-101, a qualified person must be attributed to the information. this person is defined as - correct answer engineer or geoscientist with at least 5 years experience in mining and in good standing with a professional organization surface mining is divided into two classes - correct answer mechanical and aqueous mechanical mining methods rely on mining the ore - correct answer with machinery equipment to extract and break down the ore a type of an underground caving mining method is - correct answer longwall match the ore to the mining method used to mine the ore - correct answer solution- uranium room and pillar- salt quarrying- marble open pit- copper this type of mining method can be referred to as a secondary method and used when the first mining method has reached its economic limit - correct answer auger mining the goal in this mining method is to remove large slabs that can be machined to use in architectural application - correct answer quarrying what is the difference between supported and unsupported methods of mining - correct answer supported methods require extensive supported measures. unsupported methods typically rely on