Practice test

Fuel and source of energy - Test Set 2

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Which of the following statements are correct about chloroform?
    1. Liquid fuel.
    2. Anaesthetic in nature.
    3. Produces phosgene.
    4. Fire extinguisher.
    1. 1 and 2
    2. 1 and 3
    3. 2 and 3
    4. 1 and 4
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  2. Question 2

    Which among the following is not a necessary condition for combustion?
    1. Fuel
    2. Air
    3. Ignition temperature
    4. Candle
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  3. Question 3

    Combustion of a Candle is a/an
    1. photochemical reaction
    2. exothermic reaction
    3. endothermic reaction
    4. physical change
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  4. Question 4

    Which of the following gas is used in the fire extinguisher?
    1. CO₂
    2. NO₂
    3. CO
    4. SO₂
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  5. Question 5

    CNG is considered a cleaner fuel because it:
    1. Contains lead additives
    2. Emits fewer greenhouse gases
    3. Has a higher ignition temperature
    4. Produces more CO₂ than petrol
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  6. Question 6

    The "knocking" in engines occurs due to:
    1. Low octane number
    2. High cetane number
    3. Premature combustion of fuel
    4. Excess oxygen
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  7. Question 7

    Which coal type has the highest carbon content?
    1. Peat
    2. Lignite
    3. Bituminous
    4. Anthracite
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  8. Question 8

    Water gas is a mixture of:
    1. CO + H₂
    2. CO + N₂
    3. CH₄ + CO₂
    4. H₂ + O₂
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  9. Question 9

    Consider the following:
    I. Carbon dioxide
    II. Oxides of Nitrogen
    III. Oxides of Sulphur

    Which of the above is/are the emission(s) from coal combustion at thermal power plants?
    1. I Only
    2. II and III Only
    3. I and III Only
    4. I, II and III
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  10. Question 10

    Which one of the following is not a biomass energy source?
    1. Wood
    2. Nuclear reactor
    3. Gobar gas
    4. Coal
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  11. Question 11

    Which one of the following is the largest composition in biogas?
    1. Carbon dioxide
    2. Hydrogen
    3. Methane
    4. Hydrogen sulphide
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  12. Question 12

    Basic scientific principle behind a nuclear reactor is:
    1. Nuclear fusion
    2. Controlled nuclear fusion
    3. Uncontrolled nuclear fission
    4. Controlled nuclear fission
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  13. Question 13

    The charge has to be passed ____________ to obtain maximum work from a galvanic cell.
    1. Proportionately
    2. Inversely
    3. Reversibly
    4. Uniformly
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  14. Question 14

    Solubility of gases in liquids _____________ with decrease in temperature.
    1. Increases
    2. Decreases
    3. Remains constant
    4. First decreases and then increases
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  15. Question 15

    Which of the following is NOT a fossil fuel?
    1. Asphalt
    2. Biomass
    3. Bitumen
    4. Petroleum
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  16. Question 16

    Which of the following cells is NOT used in watches?
    1. Silver oxide cell
    2. Zinc air cell
    3. Mercury cell
    4. Lead acid cell
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  17. Question 17

    Which of the following is a weak electrolyte?
    1. Magnesium sulphate
    2. Sodium chloride
    3. Ethanoic acid
    4. Calcium chloride
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  18. Question 18

    What is the major electricity generation power source in India?
    1. Coal
    2. Gas
    3. Nuclear
    4. Hydro
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  19. Question 19

    Which of the following could be used as fuel in propellant or rockets?
    1. Liquid Hydrogen + Liquid Nitrogen
    2. Liquid Oxygen + Liquid Argon
    3. Liquid Nitrogen + Liquid Oxygen
    4. Liquid Hydrogen + Liquid Oxygen
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  20. Question 20

    Incomplete combustion of a fuel gives poisonous ________ gas.
    1. Carbon dioxide
    2. Isocyanate
    3. Carbon monoxide
    4. Nitrogen
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