Questions › Category: Mechanical Engineering › If the air-fuel mixture in a spark ignition engine is too rich, then air-fuel ratio is about 0 Vote Up Vote Down VideRime Staff asked 5 years ago If the air-fuel mixture in a spark ignition engine is too rich, then air-fuel ratio is about a) 17:1 b) 15:1 c) 13:1 d) 10:1 Automobile Engineering Practice Set-7 Share this Now with Friends: Share on WhatsApp (Opens in new window) WhatsApp Share on Telegram (Opens in new window) Telegram More Related