Auto Electrician Interview Questions and Answers

I would check the battery, starter motor, and ignition system.

• Check the battery for charge and corrosion

• Check the starter motor for proper function

• Check the ignition system for spark

• Use diagnostic tools to identify the issue

Engine sensors are started by the engine control unit (ECU) which sends electrical signals to activate them.

• Engine sensors are started by the ECU.

• The ECU sends electrical signals to activate the sensors.

• The sensors then begin monitoring various engine parameters.

• Examples of engine sensors include the oxygen sensor, crankshaft position sensor, and coolant temperature sensor.

Auto electrician wiring diagnosis involves identifying and resolving electrical issues in vehicles.

• Diagnosing and repairing faulty wiring connections

• Testing electrical components for proper functioning

• Using diagnostic tools and equipment to identify electrical problems

• Repairing or replacing damaged wiring harnesses

• Ensuring proper grounding and insulation of electrical systems

• Example: Identifying a short circuit in the wiring system and repairing it

The alternator is a device in a vehicle that converts mechanical energy into electrical energy to charge the battery and power the electrical systems.

• The alternator is driven by the engine's crankshaft through a belt or pulley system.

• It generates alternating current (AC) which is then converted to direct current (DC) by the rectifier.

• The electrical energy produced by the alternator is used to charge the vehicle's battery.

• It also powers the electrical systems of the vehicle wh...read more

The A/C compressor valve controls the flow of refrigerant in the air conditioning system.

• The A/C compressor valve is responsible for regulating the pressure and flow of refrigerant in the system.

• It opens and closes to allow refrigerant to enter and exit the compressor.

• If the valve is not working properly, it can lead to issues such as insufficient cooling or compressor failure.

• Common signs of a faulty A/C compressor valve include poor cooling performance, unusual noises from ...read more