2024 updated Four-Stroke Engine: Fuel System ICEV VERIFIED 100% SOLUTIONS

Which of the following is NOT a benefit of alcohol-based fuels as mentioned in the presentation? Less carbon deposits Improves emissions Boosts octane Decreases U.S. dependency on imported oil ANS Less carbon deposits Fuel refined for use in a warmer climate will be less resistant to vapor lock. True/False ANS False With the addition of alcohol to gasoline and changes to refinery processes, power equipment manufacturers do NOT recommend storing fuel for more than what length of time? ANS 30 days Gasoline's ability to become a vapor correctly defines which of the following terms? Distillation Converter Vapor lock Volatility ANS Volatility what is considered a mid-grade gasoline? ANS Octane rating equal to 88 and less than or equivalent to 90 What are carburetors used for? ANS they're a type metering device which mixes fuel and air Which of the following accurately describes the venturi effect? ANS To combine gasoline and air Which of the following exist to limit afterbang after the engine is turned off? ANS Fuel solenoids What is the purpose of the float assembly? ANS To control the level of fuel in the fuel bowl The amount of fuel in the float bowl is _____ during consumption, causing the float and inlet needle to _______, opening the _______. The amount of fuel in the float bowl is Reduce during consumption, causing the float and inlet needle to Fall, opening the inlet. In a _____________ feed system, the fuel tank is positioned _____________ the carburetor. In a Gravity feed system, the fuel tank is positioned above the carburetor. What is the purpose of fuel injectors?