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Home ‣ Mechanical Engineering ‣ IC Engines and Nuclear Power Plants Comments
  • Question

  • Iso-octane (C8H18) has octane number of


  • Options
  • A. 0
  • B. 50
  • C. 100
  • D. 120

  • Correct Answer
  • 100 

    • IC Engines and Nuclear Power Plants problems

    Search Results

    • 1. Which of the following fuel has little tendency towards detonation?

    • Options
    • A. Benzene
    • B. Iso-octane
    • C. Normal heptane
    • D. Alcohol
      • Discuss
    • 2. The overall efficiency is defined as the ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. By higher octane number of spark ignition fuel, it is meant that the fuel has

    • Options
    • A. higher heating value
    • B. higher flash point
    • C. lower volatility
    • D. longer ignition delay
      • Discuss
    • 4. The air standard efficiency of an I.C. engine depends on

    • Options
    • A. fuel used
    • B. speed of engine
    • C. compression ratio
    • D. none of these
      • Discuss
    • 5. Reflector in nuclear power plants __________ neutron leakage.

    • Options
    • A. increases
    • B. decreases
    • C. have no effect on
      • Discuss
    • 6. If the fuel is rich in fissionable material, the reactor can be made more compact than if the percentage of fissionable atoms is small.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 7. Stoichiometric ratio is

    • Options
    • A. chemically correct air-fuel ratio by weight
    • B. chemically correct air-fuel ratio by volume
    • C. actual air-fuel ratio for maximum efficiency
    • D. none of the above
      • Discuss
    • 8. A diesel engine, during suction stroke, draws

    • Options
    • A. air only
    • B. diesel only
    • C. a mixture of diesel and air
      • Discuss
    • 9. The compression ignition engines are governed by

    • Options
    • A. hit and miss governing
    • B. qualitative governing
    • C. quantitative governing
    • D. combination of (b) and (c)
      • Discuss
    • 10. The thermal efficiency of a petrol engine is __________ as compared to diesel engine.

    • Options
    • A. same
    • B. less
    • C. more
      • Discuss

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