Short Answer. Expert verified. ... or barges for transportation to coal processing plants or industrial locations. Transporting coal can be a challenging and costly process, as it often requires the construction of new infrastructure, such as railways and ports. ... Most popular questions from this chapter. Chapter 9.
The coal delivered from the mine that reports to the coal preparation plant is called runofmine, or ROM, coal. This is the raw material for the CPP, and consists of coal, rocks, middlings, minerals and contamination. Contamination is usually introduced by the mining process and may include machine parts, used consumables and parts of ground ...
Answer: 1. This picture shows shore drilling of oil. 2. Deep wells bored to take petroleum and natural gas out is called drilling. Map Skills Class 8 Geography Chapter 3 Mineral and Power Resources. Question 1. On an outline Map of the World mark the following: (i) Countries of Asia with large iron deposits.
Here you can get Class 8 Important Questions Science based on NCERT Text book for Class 8. Science Class 8 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Coal and Petroleum for Class 8 Science subject. Very Short Answer Questions. 1. Write the names of two natural substances.
Mine mouth coal for power plants undergoes very little to no processing, while metallurgical or thermal coal for export usually undergoes washing to remove rock particles. Most coal mines that mine coal for power plants simply dig it up and send it to the power plant for burning. Very little processing. Some times a mine might blend low grade coal with higher grade coal to ensure a constant ...
Short Answer Type Questions. Question 1: Write some uses of coal. Answer: Uses of coal: ... Many useful products; like coke, coal tar and coal gas; are made by processing coal. Question 2: What is coke? Answer: Coke is almost pure form of carbon, is tough, porous and black. Coke is used in manufacture of steel and extraction of many metals.
Coal is a black sedimentary rock. It usually occurs in coal beds found in coal mines. Coal comprises of carbon, hydrogen, oxygen, sulphur, etc. When dead plants and animals decay and convert into peat which in turn is converted into lignite, then subbituminous coal, after that bituminous coal, and lastly anthracite. Hence, coal is a fossil fuel.
Q13: Name the substances obtained from the coal tar and used to repel moths and insects. Ans: Naphthalene balls Q14: What is the name of the process in which coal is heated in the absence of air? Ans: The process is called destructive distillation of coal. Q15: Name two fractions of petroleum which are used as a fuel. Ans: Petroleum and Diesel
The LFC process consistently produced 250 short tons/day of PDF and 250 barrels/day of CDL from 500 short tons of runofmine coal per day. The PDF contains percent sulfur with a heat content of 11,100 Btu/lb (compared with percent sulfur and 8,300 Btu/lb for the feed coal) [ 1 ].
outside the mining area for placement and storage. In the Midwest, where the surface topography and coal seams are generally flat, it is common to employ area strip mining in which the fragmented overburden is placed directly by large draglines in the space created where coal has been mined ().In some situations in the eastern United States, a coal seam occurring near the top of mountains is ...
Sulfur dioxide, SO2, is a colorless gas or liquid with a strong, choking odor. It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores (aluminum, copper, zinc, lead, and iron) that contain sulfur. In nature, volcanic eruptions can release sulfur dioxide into the air.
Physical and chemical changes took place as a result of heat and temperature extracting out all oxygen leaving the plant layers with carbonrich content, thus resulting in the formation of coal over a period of time. Also, read Forests. Types Of Coal. Coal is a readily combustible rock containing more than 50% by weight of carbon.
Coal is a black or brownishblack sedimentary rock that can be burned for fuel and used to generate is composed mostly of carbon and hydrocarbons, which contain energy that can be released through combustion (burning). Coal is the largest source of energy for generating electricity in the world, and the most abundant fossil fuel in the United States.
The process of peat getting buried under sediments and turning into coal continues as a cycle, as long as the conditions are suitable. This is why we see numerous layers of coal seams in certain sedimentary basins. Types of Coal. The process by which something changes under the effect of pressure and temperature is known as metamorphism in geology.
Coal mining Underground, Surface, Drilling: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many technological, economic, and ...
Fig. : A coal mine Coal Gas Coal gas is obtained during the processing of coal to get coke. It is used Coal gas was used for street lighting for the first time in London in 1810 and in New York around 1820. Now a days, it is used as a source of heat rather than light. These days, bitumen, a petroleum product, is used in place of coaltar
Free download in PDF Mining Engineering General Knowledge Multiple Choice Questions(MCQs) Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
Question. The processing of raw coal involves "washing," in which coal ash (nonorganic, incombustible material) is removed. The article "Quantifying Sampling Precision for Coal Ash Using Gy's Discrete Model of the Fundamental Error" (Journal of Coal Quality, 1989:3339) provides data relating the percentage of ash to the density of a ...
JOIN ADRE Telegram Group. Coal and Petroleum MCQs | Coal and Petroleum Multiple Choice Questions and Answers. coal and petroleum multiple choice questions and answers. Sunlight is a natural resource. Both (A) And (B) Uses of fuel includes : Produce Steam To Run The Engine. Produce Electricity In Thermal Power Plants.
It is obtained during the processing of coal to get coke. Coal gas contains a variety of gases like hydrogen, carbon monoxide, methane and some volatile hydrocarbons. It also contains small quantities of gases such as carbon dioxide and nitrogen. It is used as a fuel in many industries situated near the coal processing plants. Question 29.
These NCERT Solutions for Class 8 Science Chapter 5 have answers to questions on coal, petroleum and natural gas and other fossil fuels, the formation of fossil fuels, types of fossil fuels, uses of fossil fuels and limitations of using fossil fuels. These NCERT Class 8 Solutions are prepared systematically by experienced teachers, which will ...
Longwall mining is a highly productive underground mining process in which a panel or block of coal, sometimes 700 feet wide and a mile or more long, is completely extracted. The working are is protected by a moveable, powered roof support system. Longwall accounts for about 48% of total underground coal production. Question 8:
Coal and Petroleum Class 8 Extra Questions Very Short Answer Questions. Coal And Petroleum Class 8 Extra Questions Question 1. Name some renewable sources of energy. Answer: Water, wind, solar. ... Question 9. The process of conversion of wood into coal is called (a) carbonisation (b) catagenesis (c) carboniferous (d) none of these.
Coal and Petroleum Class 8 Extra Questions Short Answer Type 2. Question 1. Write any two uses of coke. Answer: Two uses of coke are : ... The coal gas is used as a fuel ip the coal processing plant and in many industries situated near the coal processing plants. (ii) Earlier it was used for lighting but nowadays it is used as a source of heat. ...
Dec 13, 2018. Answer. According to a research the groundwater quality decreases with flowing through abandoned coal mines often has depressed pH levels and elevated hydrogen ...
Very Short Answer Type Question. Question 1: Why LPG is a better fuel than coal? Answer: LPG is a better fuel than coal because it is a cleaner fuel. Question 2: Name the petroleum product used for surfacing of roads. Answer: Bitumen, a petroleum product, is used for metalling the roads. Question 3: What are natural resources? Answer: Materials obtained from nature are called natural resources.
Coal and Petroleum Class 8 Extra Questions Very Short Answer Questions. Question 1. Name some renewable sources of energy. Water, wind, solar. Question 2. Give some examples of fossil fuels. Coal, petroleum, natural gas. Question 3. Name the elements present in coal.
Answer: Flame is a region where the burning or combustion of gaseous substances take place. Question 13. Define fuel. Answer: Those substances which provide energy on burning are called 'fuels';, coal, petroleum, LPG, etc. Question 14. Give two examples each of solid fuels, liquid fuels and gaseous fuels. Answer:
Answer: Coal when processed in industry gives coke, coal tar and coal gas. Coke is used in the manufacture of steel and in extraction of many metals. Coal tar is used as starting material for manufacturing various substances such as synthetic dyes, drugs, explosives, perfumes, paints, etc. Coal gas is used as a fuel. chevron right.
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