10th Class Science Sources of Energy Question Bank

done Sources of Energy Total Questions - 40

• question_answer1)
  At which of the following locations is geothermal energy feasible?
  A)
  Those that are nearer to the sea done clear
  B)
  Those that have thermal plants done clear
  C)
  Those that have coal mines done clear
  D)
  Those that are above the hot spots in the crust done clear
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• question_answer2)
  What does biogas mainly consist of?
  A)
  \[C{{H}_{4}}+C{{O}_{2}}\]           done clear
  B)
  \[{{C}_{2}}{{H}_{6}}+C{{O}_{2}}\]                                            done clear
  C)
  \[C{{H}_{4}}+N{{O}_{2}}\]                           done clear
  D)
  \[{{C}_{2}}{{H}_{2}}+C{{O}_{2}}\] done clear
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• question_answer3)
  Which of the following does NOT allow harmful ultraviolet radiations from the sun to reach the earth?
  A)
  \[{{O}_{2}}\]                                     done clear
  B)
  \[N{{O}_{2}}\]                  done clear
  C)
  \[C{{O}_{2}}\]                   done clear
  D)
  \[{{O}_{3}}\]                                     done clear
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• question_answer4)
  Identify the fuel that can replace petrol in racing ears.
  A)
  Ethanol                                done clear
  B)
  Hydrogen                           done clear
  C)
  Nitrogen                             done clear
  D)
  Methanol done clear
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• question_answer5)
  What is needed to produce biogas in a biogas plant?
  A)
  Only oxygen done clear
  B)
  Only water done clear
  C)
  Both oxygen and water done clear
  D)
  Neither oxygen nor water done clear
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• question_answer6)
  What is the least speed of wind needed to generate electricity?
  A)
  \[\text{1}.\text{5}\,\text{km}\,{{\text{h}}^{-\text{1}}}\]             done clear
  B)
  \[\text{15}\,\text{km}\,{{\text{h}}^{-\text{1}}}\]                            done clear
  C)
  \[\text{15}0\,\text{km}\,{{\text{h}}^{-\text{1}}}\]                          done clear
  D)
  \[\text{15}00\text{ km }{{\text{h}}^{-\text{1}}}\]                            done clear
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• question_answer7)
  Which of the following produces heat the most on burning?
  A)
  Dung cake                          done clear
  B)
  Biomass                              done clear
  C)
  Biogas                                  done clear
  D)
  A fuel done clear
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• question_answer8)
  Which of the following causes the least pollution when burnt?
  A)
  Petrol                                   done clear
  B)
  Diesel                   done clear
  C)
  Coal                                      done clear
  D)
  Natural gas done clear
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• question_answer9)
  The main constituent of natural gas is
  A)
  \[C{{H}_{4}}\]                                   done clear
  B)
  \[{{C}_{2}}{{H}_{6}}\]                    done clear
  C)
  \[{{C}_{3}}{{H}_{8}}\]                                    done clear
  D)
  \[{{C}_{4}}{{H}_{10}}\]                  done clear
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• question_answer10)
  What is the percentage of carbon in coke?
  A)
  60%                                       done clear
  B)
  80%                       done clear
  C)
  90%                                       done clear
  D)
  98% done clear
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• question_answer11)
  In a nuclear reactor, the material used for making control rods is
  A)
  uranium.                             done clear
  B)
  graphite.                             done clear
  C)
  mercury.                             done clear
  D)
  cadmium. done clear
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• question_answer12)
  A good moderator in a nuclear reactor should
  A)
  be a gas. done clear
  B)
  slow down the speed of neutrons. done clear
  C)
  be light in mass number. done clear
  D)
  All of the above done clear
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• question_answer13)
  Atom bomb is based on the principle of
  A)
  fission. done clear
  B)
  fusion.                 done clear
  C)
  ionisation.          done clear
  D)
  electrolysis. done clear
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• question_answer14)
  A fusion reaction is initiated
  A)
  with the bombardment of any particle. done clear
  B)
  with the bombardment of neutrons. done clear
  C)
  at low temperature. done clear
  D)
  at high temperature. done clear
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• question_answer15)
  Which process is used to produce electric power in the atomic power station?
  A)
  Nuclear fusion done clear
  B)
  Nuclear fission                 done clear
  C)
  Electrolysis         done clear
  D)
  Both (A) and (B) done clear
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• question_answer16)
  Identify the forms of energy obtained from the oceans.

  (i) Tidal energy

  (ii) Ocean waves energy

  (iii) Ocean thermal energy

  A)
  Only (i) and (ii) done clear
  B)
  Only (ii) and (iii)               done clear
  C)
  Only (i) and (iii)                done clear
  D)
  (i), (ii) and (iii) done clear
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• question_answer17)
  The end product formed after biogas is used as
  A)
  manure. done clear
  B)
  poultry feed. done clear
  C)
  food for mushrooms. done clear
  D)
  dog feed. done clear
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• question_answer18)
  Which of the following, when used in a solar cooker can increase its efficiency?
  A)
  Plane mirror      done clear
  B)
  Convex mirror  done clear
  C)
  Convex lens      done clear
  D)
  Concave lens done clear
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• question_answer19)
  A solar cell is made up of
  A)
  silicon.  done clear
  B)
  titanium.                             done clear
  C)
  magnesium.      done clear
  D)
  Teflon. done clear
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• question_answer20)
  Which metal is used to connect solar cells in a solar panel?
  A)
  Gold                                     done clear
  B)
  Copper                                done clear
  C)
  Silver                                    done clear
  D)
  Nickel done clear
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• question_answer21)
  Which of the following is a cleaner fuel?
  A)
  Hydrogen                           done clear
  B)
  Wood                   done clear
  C)
  CNG                                      done clear
  D)
  Coal done clear
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• question_answer22)
  Which of the given problems is associated with the burning of coal?
  A)
  It causes acid rain. done clear
  B)
  Carbon dioxide is released. done clear
  C)
  Ash with toxic metal impurities are produced. done clear
  D)
  All of the above done clear
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• question_answer23)
  What is the time taken for the formation of anthracite coal?
  A)
  Tens of years done clear
  B)
  Hundreds of years done clear
  C)
  Thousands of years done clear
  D)
  Millions of years done clear
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• question_answer24)
  The below given devices are needed to generate electricity in a nuclear power station.

  P Boiler

  Q Dynamo

  R Reactor

  S Turbine

  Identify the correct sequence of the given devices.
  A)
  S, Q, R, P                             done clear
  B)
  R, S, P, Q                             done clear
  C)
  R, P, S, Q                             done clear
  D)
  P, S, Q, R done clear
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• question_answer25)
  A solar cell converts
  A)
  heat energy into electrical energy. done clear
  B)
  solar energy into electrical energy. done clear
  C)
  heat energy into light energy. done clear
  D)
  solar energy into light energy. done clear
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• question_answer26)
  Which of the following are the characteristics of a good fuel?

  (i) Easily accessible and economical

  (ii) Easy to store and transport

  (iii) Has a high calorific value

  A)
  Only (i) and (ii) done clear
  B)
  Only (ii) and (iii)                               done clear
  C)
  Only (i) and (iii)                done clear
  D)
  (i), (ii) and (iii) done clear
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• question_answer27)
  Which fuel is taken in the atomic pile?
  A)
  Thorium                              done clear
  B)
  Uranium                             done clear
  C)
  Potassium          done clear
  D)
  Sodium done clear
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• question_answer28)
  Why is biogas a better fuel than animal dung cakes?
  A)
  Animal dung cakes have higher calorific value than biogas done clear
  B)
  Biogas has a lower calorific value. done clear
  C)
  Biogas is a smokeless fuel and it does not leave any residue done clear
  D)
  Biogas is easily accessible than animal dung done clear
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• question_answer29)
  Identify a non-conventional source of energy from the following.
  A)
  Coal                                      done clear
  B)
  Wind                    done clear
  C)
  Natural gas        done clear
  D)
  LPG done clear
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• question_answer30)
  Classify the following fuels in ascending order of their calorific values.

  (i) Coal

  (ii) Dung cake

  (iii) Kerosene oil

  (iv) Hydrogen gas

  A)
  (ii), (i), (iii), (iv)  done clear
  B)
  (ii), (iv), (iii), (i)                 done clear
  C)
  (iv), (iii), (i), (ii)   done clear
  D)
  (iii), (ii), (i), (iv) done clear
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• question_answer31)
  Identify the disadvantage of using coal as a fuel.
  A)
  It produces a lot of noise. done clear
  B)
  It is free of impurities done clear
  C)
  It produces a lot of soot. done clear
  D)
  It does not produce a hot flame. done clear
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• question_answer32)
  Which of the given statements is incorrect?
  A)
  Biomass is a plant residue. done clear
  B)
  Biomass is used to produce biogas. done clear
  C)
  Biomass is a renewable source of energy. done clear
  D)
  Biomass is used to produce liquid petroleum gas. done clear
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• question_answer33)
  A solar panel is made by combining a large number of
  A)
  solar cookers. done clear
  B)
  solar cells. done clear
  C)
  solar concentrators. done clear
  D)
  solar water heaters. done clear
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• question_answer34)
  Which type of coal is of the best quality?
  A)
  Lignite                                  done clear
  B)
  Bituminous                        done clear
  C)
  Anthracite          done clear
  D)
  Peat done clear
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• question_answer35)
  Source rocks are the rocks where
  A)
  rivers originate. done clear
  B)
  CNG is formed. done clear
  C)
  petroleum is formed. done clear
  D)
  coal is formed. done clear
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• question_answer36)
  The fission of a nucleus is achieved by bombarding it with
  A)
  protons.                              done clear
  B)
  neutrons.           done clear
  C)
  electrons.      done clear
  D)
  X-rays. done clear
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• question_answer37)
  Solar constant is the amount of solar energy received
  A)
  per second by one square metre area. done clear
  B)
  per hour by one square kilometer area. done clear
  C)
  per minute by one square metre area. done clear
  D)
  per second by one square kilometer area. done clear
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• question_answer38)
  Why is charcoal a better fuel than wood?
  A)
  It is a volatile fuel with low calorific value. done clear
  B)
  It is a low calorie, smokeless fuel. done clear
  C)
  It is a compact, smokeless fuel with high calorific value. done clear
  D)
  It contains carbon, nitrogen, sulphur and phosphorus which enhances its calorific value. done clear
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• question_answer39)
  The main source of energy in the sun is due to
  A)
  nuclear fission. done clear
  B)
  nuclear fusion. done clear
  C)
  gravitational contraction. done clear
  D)
  combustion. done clear
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• question_answer40)
  Which of the following is NOT used as a nuclear fuel?
  A)
  Uranium                             done clear
  B)
  Thorium                              done clear
  C)
  Plutonium          done clear
  D)
  Titanium done clear
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