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

  • The basic requirement of a good combustion chamber is


  • Options
  • A. minimum turbulence
  • B. low compression ratio
  • C. high thermal efficiency and power output
  • D. low volumetric efficiency

  • Correct Answer
  • high thermal efficiency and power output 

    • IC Engines and Nuclear Power Plants problems

    Search Results

    • 1. The object of supercharging the engine is

    • Options
    • A. to reduce mass ofthe engine per brake power
    • B. to reduce space occupied by the engine
    • C. to increase the power output of an engine when greater power is required
    • D. all ofthe above
      • Discuss
    • 2. Ordinary water is sometimes used as moderator when enriched uranium is used as a fuel in nuclear power plants.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 3. In a four stroke cycle petrol engine, the charge is compressed when both the valves (i.e. inlet valve and exit valve) are closed,

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 4. The reference fuels for knock rating of spark ignition engines would include

    • Options
    • A. iso-octane and alpha-methyl naphthalene
    • B. normal octane and aniline
    • C. iso-octane and normal hexane
    • D. normal heptane and iso-octane
      • Discuss
    • 5. The detonation is also called knocking or pinking.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 6. In a diesel engine, the duration between the time of injection and ignition, is known as

    • Options
    • A. pre-ignition period
    • B. delay period
    • C. period of ignition
    • D. burning period
      • Discuss
    • 7. The injection pressure in a diesel engine is about

    • Options
    • A. 10 bar
    • B. 100 bar
    • C. 150 bar
    • D. 500 bar
      • Discuss
    • 8. The secondary fuel used in nuclear power plants is

    • Options
    • A. U233 and Pu239
    • B. U235 and Th232
    • C. U235 and Pu238
    • D. U233 and Pu238
      • Discuss
    • 9. The detonating tendency in petrol engines increases with increase of compression ratio.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Reactors for propulsion applications are designed for

    • Options
    • A. any form of uranium
    • B. natura uranium
    • C. enriched uranium
    • D. plutonium
      • Discuss

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