Air Pollution And Its Control In Automobile MCQ

Test your knowledge with important Air Pollution And Its Control In Automobile MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Air Pollution And Its Control In Automobile MCQs on Bissoy. Bissoy App

• In spark ignition petrol engines maximum emission of Nox takes place when the air fuel ratio (A/F) is
  ক

  Very weak mixture and A/F ratio about 19

  খ

  Weak mixture and A/F ratio about 17

  গ

  Chemically correct mixture and A/F ratio about 15

  ঘ

  Rich mixture and A/F ratio about 13.
• The main purpose of an engine's air cleaner is that it
  ক

  Prevents rainwater from entering the engine

  খ

  Prevents the dust and other foreign matter from entering the engine

  গ

  Controls the engine's air intake volume

  ঘ

  Reduce the engine's air intake noise
• When water emulsion is used as the fuel in SI engine the emission of nitrogen oxides reduces significantly, this is due to
  ক

  Water reacts with nitrogen oxides

  খ

  Water does not contain nitrogen

  গ

  The combustion temperature decreased

  ঘ

  The combustion temperature increased