ASE T8 Domain 1: Engine Systems Welcome to your ASE T8 Domain 1: Engine Systems 1. ASE T8: Engine Systems Which of the following components is responsible for controlling the ignition timing in an internal combustion engine? A. Fuel injector B. Camshaft position sensor C. Ignition control module D. Throttle position sensor None 2. ASE T8: Engine Systems In a diesel engine, what is the primary purpose of the glow plugs? A. To control fuel injection B. To ignite the air-fuel mixture C. To preheat the combustion chamber D. To regulate engine coolant temperature None 3. ASE T8: Engine Systems What component is responsible for regulating the amount of air entering the engine in a gasoline-powered vehicle? A. Mass air flow sensor (MAF) B. Crankshaft position sensor C. EGR valve D. Fuel pressure regulator None 4. ASE T8: Engine Systems What could be the cause of excessive exhaust smoke in a diesel engine? A. Low engine oil level B. Faulty spark plugs C. Worn piston rings D. A malfunctioning MAF sensor None 5. ASE T8: Engine Systems What does the "knocking" sound in an engine indicate, and what component may be responsible for it? A. Low oil pressure; faulty oil pump B. Detonation; incorrect ignition timing C. Exhaust leak; damaged exhaust manifold D. Valve float; worn valve lifters None 6. ASE T8: Engine Systems What is the purpose of the PCV (Positive Crankcase Ventilation) system in an engine? A. To control fuel injection B. To regulate engine coolant temperature C. To remove harmful crankcase vapors D. To adjust valve lifters None 7. ASE T8: Engine Systems In an engine equipped with variable valve timing (VVT), what does VVT control? A. Fuel injection timing B. Camshaft position C. Exhaust gas recirculation D. Valve opening and closing timing None 8. ASE T8: Engine Systems What is the function of the EGR (Exhaust Gas Recirculation) system in an engine? A. To control fuel injection B. To regulate engine coolant temperature C. To reduce nitrogen oxide (NOx) emissions D. To adjust valve lifters None 9. ASE T8: Engine Systems What component in a diesel engine is responsible for compressing the air in the combustion chamber? A. Turbocharger B. Distributor C. Throttle body D. Spark plug None 10. ASE T8: Engine Systems What can be the consequence of a malfunctioning fuel pressure regulator in a gasoline engine? A. Increased fuel efficiency B. Improved acceleration C. Fuel system pressure issues and poor engine performance D. Quieter engine operation None 1 out of 10 Time is Up! Time's up
