AllMinings 2 months ago 050 mins. Coal processing refers to the activities that are undertaken to prepare coal for use in various industries. This process involves several stages, each aimed at improving the quality and suitability of coal for specific applications. Here are the key steps involved in coal processing: Mining. Crushing and Sizing.
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These solutions cover important concepts in different patterns like MCQs and short answer questions, worksheets and more and help you top score good marks in the exam. ... As coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonisation. Question 4: Fill in the blanks. (a) Fossil fuels are ...
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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.
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1. Coal and petroleum processing Read online for free.
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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.
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All of the exercises and questions and answers from the lesson's back end have been completed. NCERT Solutions for Class 8 Science Coal And Petroleum Chapter 5 NCERT Solutions for Class 8 Science Coal And Petroleum Chapter 5 The following is a summary in Hindi and English for the academic year . ... In this process coal tar and coal ...
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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 ...
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Ans. Coal is a black or brownishblack sedimentary rock that is primarily composed of carbon. It is formed from the remains of vegetation that lived and died millions of years ago. Over time, the vegetation was buried and subjected to high pressure and heat, which transformed it into coal. 2.
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Coal is an abundant natural resource that can be used as a source of energy, as a chemical source from which numerous synthetic compounds (, dyes, oils, waxes, pharmaceuticals, and pesticides) can be derived, and in the production of coke for metallurgical is a major source of energy in the production of electrical power using steam generation.
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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.
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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.
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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.
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Download Solution PDF. The correct answer is Fortification. Food fortification is the process of adding micronutrients (essential trace elements and vitamins) to food. It is the practice of deliberately increasing the content of an essential micronutrient, vitamins and minerals (including trace elements) in a food.
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Question 1. Very short answer type questions: (i)Name two types of natural resources. (ii)Define the term "Carbonisation". (iii)Which type of coal is also known as black lignite? (iv)In which process coal is heated up to 1000°C in the absence of air to form useful components? (v)Which component is a mixture of hydrogen, methane, carbon ...
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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.
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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.
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Underground mining, we also call deep mining. It is a process that extracts coal from deep below the Earth's surface—may be as far as 300meters. For coal mining, you need use many coal mining machines like the conveyor belt. This is a complicated process and you are better to find a professional team to build the coal mining plant.
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The course is aimed at more senior mineral processing personnel, and provides the student with a wider and more advanced scope regarding Coal Preparation and utilisation in general. It also prepares the student to play a more meaningful role in the management of the ore beneficiation environment. It is presented during four 3week study schools ...
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Chemistry Fuels and Combustion Important Questions and Answers: Fuels and Combustion. 1. How fuels are classified. Give one example for each. Based on Occurrence 2 Types. Primary Fuels It occurs in nature such as. Ex: Coal, Crude oil, Natural Gas. Secondary Fuels It is derived from primary fuels.
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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:
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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.
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Industries Class 8 MCQs Questions with Answers. Question 1. With limited capital, a food processing unit is set up in a particular village in Gujarat. This unit generates employment to that particular village. Name the type of classification of industry under which this food processing unit will come under. Question 2.
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Coal and Petroleum Class 8 Extra Questions Very Short Answer Type. 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.
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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 ...
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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 ...
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Engineering Chemistry Questions and Answers Coal Technology. This set of Engineering Chemistry Multiple Choice Questions Answers (MCQs) focuses on "Coal Technology". 1. How do the noncoking coals are subjected to consumers in India? a) By washing. b) By sizing. c) By sorting. d) By blending. View Answer.
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Formation of Coal (Process) Coal is composed of carbon, hydrogen, oxygen, nitrogen, sulphur, moisture, and incombustible mineral matter (, ash). Fluorinated gases are not formed by coal combustion. Coals are formed from the accumulation of vegetable debris in specialized environments. Obtaining coal from the mines is a difficult job.
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UN climate summit begins in Dubai on 30 November and will readdress finance for loss and damage For almost three decades, world governments have met nearly every year to forge a global response to ...
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Coal and Petroleum. 1. Read the following statements and select the correct ones. A. Coal, petroleum and natural gas are fossil fuels. B. Coal and natural gas are exhaustible resources. C. Coke is used in the manufacture of steel. D. Fossil fuels are present in limited quantities.
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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.
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Due to natural process the forests get buried under the soil and got compressed. Due to the change in temperature dead plants got converted into a fossil called coal. ) Fill in the blanks. The slow process of conversion of dead vegetation into coal is called carbonisation. Coal gas is obtained during the processing of coal to get coke.
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