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Homework answers / question archive / Electricity 1)What is the energy conversion that takes place in a turbine in a power plant? A generator works on the principle of electromagnetic induction

Electricity 1)What is the energy conversion that takes place in a turbine in a power plant? A generator works on the principle of electromagnetic induction



1)What is the energy conversion that takes place in a turbine in a power plant?

  1. A generator works on the principle of electromagnetic induction.
  2. In a nuclear power plant, nuclear reactions are used for converting water into steam.
  3. A standard steam power plant is more efficient than Cogeneration.
  4. Distributed generation reduces the amount of energy lost in transmitting electricity, as electricity is produced very near to the place where it is used.
  5. Central distribution is more efficient than distributed generation for transmitting electricity.
  6. What is the function of a generator in a power plant?

Fossil fuel and coal

  1. Which of the following processes does NOT happen in the global carbon cycle?
  2. The starting point of the formation of fossil fuels is the transformation of decaying organic matter to kerogen.
  3. Kerogen derived from higher plants gets converted to crude oil and natural gas when buried inside the earth for millions of years.
  4. Kerogens are formed by the transformation of inorganic matter into an insoluble, polymeric material
  5. Kerogen formed from algae or plankton is derived from
  6. Kerogen produced from higher plants gets converted into natural gas.
  7. Kerogens are produced from algae, planktons and higher plants with the help of decomposition by bacteria.
  8. How many hydrogen atoms are present in coal for one carbon atom?
  9. The quantity of an energy source that is known to exist and that can be recovered economically is called
  10. Economic feasibility and geological assurances are two important variables that differentiate resources and reserves.
  11. Lifetime predictions for a fossil fuel are done based on available resources.
  12. Which among the fossil fuel reserves are abundantly available in United States?
  13. United States has large crude oil reserves.
  14. Most of the natural gas reserves in the world are located in United States.
  15. The United States is the largest exporter of coal.
  16. Most of the coal found in United States is
  17. Which of the following properties is not measured during Proximate analysis of coal?
  18. Which of the following properties are not used in ranking of coal?
  19. Proximate analysis exactly measures the elemental composition of coal.
  20. Lignite is the highest ranked coal.
  21. Lignite is the youngest ranked coal.
  22. Which coal has the highest fixed carbon content?
  23. Anthracite has higher volatile matter content than Bituminous coal.
  24. Lignite has higher heating value than Bituminous coal.
  25. Low and medium rank coals are ranked on the basis of volatile matter content.
  26. In a DAF basis analysis, which of the following properties are excluded
  27. With increase in the rank of coals, which one of the following element's composition decreases?
  28. Which one of the following combustion process uses limestone?
  29. In fluidized bed combustion, fine coal particles are "fluidized" and burnt using a jet of hot air.
  30. Coal can be used directly to produce "pig iron" by mixing it with iron ore in a blast furnace.
  31. Coke is produced by combustion of coal in a furnace.
  32. Carbonization is the process of heating coal in the absence of air to produce coke.
  33. Which one of the following is an example of clean coal technology?


  1. The amount of nitrogen in petroleum is more than in coal.
  2. How is crude oil separated during the distillation process?
  3. Larger molecules tend to have a higher boiling point.
  4. Which of the following recovery methods for oil is the most expensive?
  5. What is the approximate carbon content in petroleum crude?
  6. Crude oil recovered from deep oil reservoirs tend to have
  7. Reservoir rock is a rock that produces crude oil.
  8. The formula for paraffin cyclohexane is
  9. What is the main function of a refinery?
  10. What recovery method uses steam, chemicals or bugs?
  11. What are the major refining processes?
  12. One barrel of oil (42 gallons) produces more than a barrel of products.
  13. Which hydrocarbons have straight or branched chains of carbon atoms?
  14. Which of the following media is used in secondary recovery method?
  15. Which place converts crude oil into useful products such as gasoline, fuel oil, waxes or asphalt?
  16. What is the problem with aromatics in the petroleum industry?
  17. Which of the following compound has an octane rating of 0?
  18. If a paraffin compound has 8 carbon atoms, how many hydrogen atoms are present in the molecule?
  19. Which hydrocarbons have benzene and rings of benzene?
  20. What is the separation of materials based on differences in the volatility called?
  21. What does a higher octane number signify?
  22. Knocking is a desirable feature in a four-stroke engine.
  23. Which of the following recovery methods takes advantage of significant oil pressure in the reservoir?
  24. If a cycloparaffin compound has six carbon atoms, how many hydrogen atoms are present in the molecule?
  25. Which among the following reservoirs produce the best crude oil?

Short answer

  1. CO is a secondary pollutant.
  2. Ground level ozone is a secondary pollutant.
  3. Aerosols (formed from sulfate particles) can cause the planet to cool down.
  4. Acid rain damages trees in which of the following manners?
  5. Which of the following areas are more likely to experience acid rain damage?
  6. Ozone forms by the reaction of nitrogen oxides and
  7. In large cities, ozone is at the highest concentration at which time of day?
  8. Volatile organic compounds are emitted primarily from which source?
  9. The ozone hole has
  10. Ozone is a
  11. Sulfates and nitrates that form in the atmosphere from sulfur dioxide (SO2) and nitrogen oxides (NOx) emissions contribute to
  12. How many tons of C in the form of CO and other heat-trapping gases are released globally into the air each year?
  13. Which gases contribute to ozone formation at the ground level?
  14. Which gases cause respiratory illness when exposed to over the long run?
  15. The most efficient clothes washer is
  16. Water heaters consume energy
  17. On-demand water heaters have a storage tank.
  18. Nitric acid is formed when
  19. Most of the ground level ozone is produced
  20. Which one of the following are all greenhouse gases?
  21. PM10 is a term used for particles that are larger than or equal to 10 µm (micro meter) in diameter.
  22. Sulfuric acid is formed when
  23. Ground level ozone is produced directly by combustion.
  24. The largest ozone hole is located over:


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