Emissions Control Systems Quiz

What harmful emissions do cars produce?

• Carbon monoxide, particulates

• Oxygen, nitrogen

• Water vapor, oxygen

• Hydrogen, helium

Carbon dioxide is not harmful – true or false.

• True

• False

List three things vehicles have fitted as part of the emission control systems.

• Catalytic converter, exhaust gas recirculation, evaporative emissions control

• Air filter, oil filter, fuel pump

• Radiator, alternator, battery

• Spark plug, distributor, ignition coil

What is the purpose of the catalytic converter?

• Removes harmful gases and converts them into less harmful substances

• Increases engine power by boosting fuel intake

• Filters air entering the engine

• Reduces engine noise

What is the common name for H2O?

• Water

• Hydrogen peroxide

• Oxygen

• Carbon dioxide

What is the purpose of the diverter valve in the air injection system?

• Stops airflow under deceleration

• Increases fuel efficiency

• Reduces engine temperature

• Enhances exhaust sound

List two components of a mechanical EGR system.

• Temperature switch, EGR valve

• Fuel injector, spark plug

• Air filter, oil filter

• Radiator, alternator

Please list two components of an electronic EGR system.

• ECU, DPFE sensor

• Battery, alternator

• Fuel pump, oil filter

• Spark plug, distributor

What is the purpose of the charcoal canister in an evaporative emissions control system?

• Stores fuel vapours

• Increases engine power

• Filters engine oil

• Reduces engine noise

What does PCV stand for?

• Positive crankcase ventilation

• Pressure control valve

• Power control vehicle

• Pneumatic control valve