Auto information · Difficulty 1
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
Which statement best describes spark plug?
- a component that dampens suspension movement
- a component that removes particles from circulating engine oil
- a device that ignites the compressed air-fuel mixture in a gasoline engine
- a controlled valve that meters and sprays fuel
Reveal answer and explanation
a device that ignites the compressed air-fuel mixture in a gasoline engine
spark plug is a device that ignites the compressed air-fuel mixture in a gasoline engine. A timed electrical spark begins combustion in a cylinder.