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

  • 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

  • Correct Answer
  • chemically correct air-fuel ratio by volume 

    • IC Engines and Nuclear Power Plants problems

    Search Results

    • 1. 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
    • 2. Iso-octane (C8H18) has octane number of

    • Options
    • A. 0
    • B. 50
    • C. 100
    • D. 120
      • Discuss
    • 3. Which of the following fuel has little tendency towards detonation?

    • Options
    • A. Benzene
    • B. Iso-octane
    • C. Normal heptane
    • D. Alcohol
      • Discuss
    • 4. 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
    • 5. 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
    • 6. A diesel engine, during suction stroke, draws

    • Options
    • A. air only
    • B. diesel only
    • C. a mixture of diesel and air
      • Discuss
    • 7. 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
    • 8. The thermal efficiency of a petrol engine is __________ as compared to diesel engine.

    • Options
    • A. same
    • B. less
    • C. more
      • Discuss
    • 9. The spark 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. In petrol engines, advancing of the spark timing will __________ the knocking tendency.

    • Options
    • A. not effect
    • B. decrease
    • C. increase
      • Discuss

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