Fuel Injection, Exhaust, and Ignition Systems Quiz

1. What is the primary purpose of a fuel injection system in an internal combustion engine?

• a. Increase exhaust emissions
• b. Improve fuel efficiency
• c. Reduce engine noise
• d. Enhance tire traction
• Option 5

2. Which of the following is not a component of an exhaust system?

• a. DPF
• b. Oxygen sensor
• c. Carburetor
• d. Catalytic converter

3. The term "stoichiometric ratio" refers to:

• a. The ratio of air to fuel for complete combustion
• b. The volume of exhaust gas
• c. The compression ratio of an engine
• d. The timing of ignition sparks
• Option 5

4. What does EGR stand for in an automotive context?

• a. Exhaust Gas Recirculation
• b. Electronic Gear Ratio
• c. Engine Gear Retarder
• d. Emission Gas Recovery
• Option 5

5. In a fuel injection system, what is the purpose of the MAP sensor?

• a. Monitor air pressure in the intake manifold
• b. Measure fuel flow rate
• c. Control ignition timing
• d. Regulate exhaust gas recirculation
• Option 5

6. The catalytic converter is responsible for reducing what emissions

• a.HC/CO/NOx
• b. CO2/HC/NOs
• c. H20/ O2 / NOx
• d. HC / NOs / CO

7. Which ignition system component generates high voltage for the spark plugs?

• a. Ignition coil
• b. Distributor
• c. Spark plug wires
• d. Crankshaft position sensor
• Option 5

8. What is the purpose of a camshaft position sensor in an ignition system?

• a. Monitor engine coolant temperature
• b. Determine the position of the crankshaft
• c. Control fuel injection timing
• d. Regulate air intake
• Option 5

9. What does the acronym ECM stand for in automotive terminology?

• a. Engine Control Module
• b. Exhaust Control Mechanism
• c. Electronic Carburetor Module
• d. Emission Control Matrix
• Option 5

10. The term "knocking" in an engine refers to:

• a. Spark plug failure
• b. Uncontrolled combustion in the exhaust system
• c. Detonation or pre-ignition
• d. Fuel injector malfunction
• Option 5