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IC Engines and Nuclear Power Plants problems

  • 1. The unit million electron volts (Mev) is commonly used to measure the nuclear energy.

  • Options
  • A. True
  • B. False
    • Discuss
  • 2. The compression ratio in petrol engines is kept low as compared to diesel engines because higher compression ratio in petrol engines would lead to pre-ignition of fuel.

  • Options
  • A. Agree
  • B. Disagree
    • Discuss
  • 3. Which of the following does not relate to a compression ignition engine?

  • Options
  • A. Fuel pump
  • B. Fuel injector
  • C. Governor
  • D. Carburettor
    • Discuss
  • 4. The higher combustion chamber wall temperature in compression ignition engines will __________ knocking tendency.

  • Options
  • A. increase
  • B. reduce
  • C. not effect
    • Discuss
  • 5. The two stroke cycle engines have lighter flywheel.

  • Options
  • A. Agree
  • B. Disagree
    • Discuss
  • 6. The scavenging efficiency of a four stroke cycle diesel engine is

  • Options
  • A. below 50%
  • B. between 50 and 85%
  • C. between 85 and 95%
  • D. between 95 and 100%
    • Discuss
  • 7. A diesel engine has compression ratio from

  • Options
  • A. 6 to 10
  • B. 10 to 15
  • C. 15 to 25
  • D. 25 to 40
    • Discuss
  • 8. The voltage required to produce a spark across the gap, between the sparking points is

  • Options
  • A. 2000 to 4000 volts
  • B. 4000 to 6000 volts
  • C. 6000 to 10 000 volts
  • D. 10 000 to 12 000 volts
    • Discuss
  • 9. The nuclear radiators produced in a reactor which must be sheilded are

  • Options
  • A. electrons
  • B. ?, ? and ? rays
  • C. neutron and gamma rays
  • D. none of these
    • Discuss
  • 10. In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then __________ is employed.

  • Options
  • A. fuel pump
  • B. injector
  • C. carburettor
  • D. none of these
    • Discuss

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