What is the primary purpose of the high-voltage disconnect switch in a hybrid/electric vehicle?
The high-voltage disconnect switch ensures safety by cutting off power to the HV system during maintenance or emergencies.
Which component converts DC power from the battery to AC power for the electric motor?
The inverter is critical for powering the AC motor in hybrid/electric vehicles.
What safety precaution is REQUIRED before servicing a hybrid vehicle's high-voltage system?
Deactivating the HV system prevents electrical shocks or accidental activation.
Which of the following indicates a faulty hybrid battery pack?
Rapid discharge or inability to hold charge are common signs of battery degradation.
What is the role of the DC-DC converter in a hybrid/electric vehicle?
The DC-DC converter steps down high-voltage DC to 12V to power auxiliary systems.
Which tool is SAFE to use when measuring high-voltage circuits?
CAT III-rated multimeters are designed to handle high-voltage automotive systems.
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What does regenerative braking accomplish in a hybrid/electric vehicle?
Regenerative braking recaptures kinetic energy to recharge the HV battery.
Which color typically identifies high-voltage wiring in hybrid/electric vehicles?
Orange is the industry standard for high-voltage components to warn technicians.
What is the function of the onboard charger (OBC) in a plug-in hybrid?
The OBC converts AC grid power to DC to charge the HV battery.