A rich air-fuel ratio causes HC emissions to ________.
The appropriate word to fill in the blank in the statement “ A rich air-fuel causes HC emissions to _______”.
Answer to Problem 1RQ
A rich air-fuel ratio causes higher HC emissions.
Explanation of Solution
Unburned hydrocarbons are usually, vapors of gasoline that have not been burned during combustion. HC emissions illustrate that the combustion of fuel is not completed in the engine cylinder. The amount of HC depends on certain engine conditions, one of which is a rich air-fuel ratio. Whenever the mixture of air-fuel is extremely rich it causes higher HC and CO emissions.
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Chapter 34 Solutions
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- Automotive Technology: A Systems Approach (MindTa...Mechanical EngineeringISBN:9781133612315Author:Jack Erjavec, Rob ThompsonPublisher:Cengage Learning