EGR valves

What is the purpose of the EGR valve

• Increase performance

• Improve fuel economy

• Reduce performance

• Reduce harmful emissions

What is the effect of having less oxygen in the combustion chamber?

• If lowers combustion temperatures

• It increases combustion temperatures

• It Increases engine power

• It reduces engine knock

By how much are Nitrogen Oxide emissions reduced by the EGR valve

• 80%

• 70%

• 60%

• 100%

Which of the following is not a type of EGR valve

• Pneumatic or Electrical

• Hybrid

• Petrol or Diesel

• Water Cooled

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Why are EGR coolers used?

• To increase the fuel consumption

• To decrease the fuel consumption

• To meet new emissions standards

• To meet Euro 4 emissions standards

How are EGR coolers made to resist Exhaust gas and its vapour?

• Made of Mild Steel

• Made of Titanium

• Made of Aluminium

• Made of high corrosion resistance materials

The EGR is used to reduce which pollutant

• Oxides of Nitrogen

• Carbon Dioxide

• Carbon Monoxide

• Hydro-Carbons