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Home Mechanical Engineering IC Engines and Nuclear Power Plants Comments

  • Question
  • During idling, a petrol engine requires __________ mixture.


  • Options
  • A. lean
  • B. rich
  • C. chemically correct

  • Correct Answer
  • rich 


  • IC Engines and Nuclear Power Plants problems


    Search Results


    • 1. In a four stroke cycle petrol engine, the expansion

    • Options
    • A. starts at top dead centre and ends at bottom dead centre
    • B. starts at 30° before top dead centre and ends at 50° before bottom dead centre
    • C. starts at 30° after top dead centre and ends at 50° after bottom dead centre
    • D. may start and end anywhere
    • Discuss
    • 2. If petrol is used in a diesel engine, then

    • Options
    • A. low power will be produced
    • B. efficiency will be low
    • C. higher knocking will occur
    • D. black smoke will be produced
    • Discuss
    • 3. The ignition quality of diesel oil is expressed by

    • Options
    • A. cetane number
    • B. octane number
    • C. calorific value
    • D. none of these
    • Discuss
    • 4. In petrol engines, using a fixed octane rating fuel, the increase in compression ratio will not effect the knocking tendency.

    • Options
    • A. Agree
    • B. Disagree
    • Discuss
    • 5. Enriched uranium may contain fissionable contents from

    • Options
    • A. 1 to 40%
    • B. 10 to 50%
    • C. 1 to 80%
    • D. 1 to 99%
    • Discuss
    • 6. The brake power is always greater than indicated power.

    • Options
    • A. Agree
    • B. Disagree
    • Discuss
    • 7. The sensing element in the control system of nuclear reactors measure the __________ of the neutron flux in the reactor.

    • Options
    • A. temperature
    • B. volume
    • C. density
    • D. none of these
    • Discuss
    • 8. The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of

    • Options
    • A. Morse test
    • B. prony brake test
    • C. motoring test
    • D. heat balance test
    • Discuss
    • 9. The first nuclear power plant in India was located at

    • Options
    • A. Kota
    • B. Tarapur
    • C. Bareilly
    • D. none of these
    • Discuss
    • 10. Which of the following statement is correct regarding normal cetaine?

    • Options
    • A. It is a standard fuel used for knock rating of diesel engines.
    • B. Its chemical name is normal-hexadecane.
    • C. It has long carbon chain structure.
    • D. all ofthe above
    • Discuss


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