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

  • Uranium has isotopes


  • Options
  • A. U234
  • B. U235
  • C. U238
  • D. all of these

  • Correct Answer
  • all of these 

    • IC Engines and Nuclear Power Plants problems

    Search Results

    • 1. The advancing of spark timing in spark ignition engines will __________ knocking tendency.

    • Options
    • A. increase
    • B. reduce
    • C. not effect
      • Discuss
    • 2. The colour of exhaust from diesel engine is generally

    • Options
    • A. white
    • B. bluish
    • C. black
    • D. violent
      • Discuss
    • 3. The theoretically correct mixture of air and petrol is

    • Options
    • A. 10:1
    • B. 15:1
    • C. 20:1
    • D. 25:1
      • Discuss
    • 4. If V1 is the jet velocity and V0 is the vehicle velocity, then the propulsive efficiency of a rocket is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. The frictional power (F.P.) is given by

    • Options
    • A. F.P. = B.P. - I.P.
    • B. F.P. = I.P. - B.P.
    • C. F.P. = B.P./I.P.
    • D. F.P. = I.P./B.P.
      • Discuss
    • 6. The maximum propulsive efficiency of a turbo-jet engine is at a speed of

    • Options
    • A. 1000 km/h
    • B. 2000 km/h
    • C. 2400 km/h
    • D. 3000 km/h
      • Discuss
    • 7. In a four stroke cycle diesel engine, the exhaust valve

    • Options
    • A. opens at 30° before bottom dead cnetre and closes at 10° after top dead centre
    • B. opens at 30° after bottom dead centre and closes at 10° before top dead centre
    • C. opens at bottom dead centre and closes at top dead centre
    • D. may open and close anywhere
      • Discuss
    • 8. In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 9. An atom bomb utilises uncontrolled nuclear fission.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A two stroke cycle engine gives __________ mechanical efficiency than a four stroke cycle engine.

    • Options
    • A. higher
    • B. lower
      • Discuss

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