What is the function of an alternator in a vehicle?
The alternator charges the battery and powers the electrical system when the engine is running.
Which component stores electrical energy for engine starting?
The battery provides the necessary power to start the engine and run accessories when the engine is off.
What is the main role of a catalytic converter?
A catalytic converter reduces harmful exhaust emissions by converting them into less toxic substances.
Which system uses sensors to monitor exhaust gases?
The emissions control system uses sensors to regulate and reduce pollutants in exhaust.
Why is proper grounding essential in automotive electrical systems?
Grounding provides a return path for electrical current and ensures system stability.
Which tool is commonly used to diagnose electrical issues?
A multimeter can test voltage, resistance, and continuity in circuits.
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What is the purpose of a fuse in a vehicle?
Fuses protect electrical circuits by breaking the circuit if current exceeds safe levels.
Which emission system recirculates exhaust gases to lower combustion temperature?
The EGR (Exhaust Gas Recirculation) system reduces nitrogen oxide emissions.
Why is it important to address check engine light issues promptly?
Delaying repair can lead to serious damage and increased emissions.