Automotive Systems and Parts Flashcards

Supplemental Restraint System (SRS) airbags that have deployed in a collision must generally be:

Answer: Replaced along with related components such as sensors or the clock spring as required

Deployed airbags are single-use and must be replaced, often with associated modules or sensors per manufacturer procedures.

An illuminated SRS warning light during an appraisal inspection most likely indicates:

Answer: A fault in the airbag or restraint system

The SRS light signals the restraint system has detected a fault, which may disable airbags and reduce value.

Which body-on-frame component is commonly inspected for kinks or welds to identify prior major collision damage on trucks and full-size SUVs?

Answer: Frame rails

Kinks, wrinkles, or non-factory welds on frame rails indicate prior structural damage and repair.

What is the function of a vehicle's thermostat in the cooling system?

Answer: Regulate coolant flow to keep the engine at operating temperature

The thermostat stays closed until the engine warms, then opens to let coolant flow to the radiator.

What does a turbocharger use to drive its compressor?

Answer: Exhaust gas flow

A turbocharger's turbine is spun by exhaust gases, which drives the compressor that forces more air into the engine.

An appraiser measures paint thickness well above factory readings on one door. What does this most likely indicate?

Answer: The panel has been refinished, possibly after damage repair

Elevated paint-meter readings suggest added paint or body filler, indicating the panel was repaired or refinished.

Which charging system component converts mechanical energy into electrical energy while the engine runs?

Answer: Alternator

The belt-driven alternator generates AC power, which is rectified to DC to charge the battery and run electrical loads.