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Questions and Answers
What is the purpose of an oxygen sensor in an exhaust system?
What is the purpose of an oxygen sensor in an exhaust system?
- To carry gas out of the tailpipe
- To reduce harmful emissions
- To measure oxygen in the exhaust to adjust fuel mixture (correct)
- To combine exhaust from each cylinder
What is the purpose of a catalytic converter?
What is the purpose of a catalytic converter?
- To combine exhaust from each cylinder
- To reduce harmful emissions (correct)
- To carry gas out of the tailpipe
- To measure oxygen in the exhaust to adjust fuel mixture
What is the purpose of Selective Catalytic Reduction (SCR) technology?
What is the purpose of Selective Catalytic Reduction (SCR) technology?
- To carry gas out of the tailpipe
- To measure oxygen in the exhaust to adjust fuel mixture
- To reduce harmful emissions (correct)
- To combine exhaust from each cylinder
What is the purpose of mufflers/silencers in an exhaust system?
What is the purpose of mufflers/silencers in an exhaust system?
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What is the purpose of resonators in an exhaust system?
What is the purpose of resonators in an exhaust system?
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What is the purpose of exhaust pipes in an exhaust system?
What is the purpose of exhaust pipes in an exhaust system?
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What are some symptoms of exhaust problems?
What are some symptoms of exhaust problems?
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Study Notes
- Components of an exhaust system include an exhaust manifold, oxygen sensor, catalytic converter, muffler/silencer, resonator, and exhaust pipe.
- The exhaust manifold combines each cylinder's exhaust into one pipe.
- An oxygen sensor measures oxygen in the exhaust to adjust fuel mixture.
- A catalytic converter reduces harmful emissions.
- Selective Catalytic Reduction (SCR) technology uses ammonia to break down dangerous emissions.
- Mufflers/silencers reduce exhaust noise.
- Resonators can further reduce engine noise.
- Exhaust pipes carry gas out of the tailpipe.
- Symptoms of exhaust problems include noises and abnormal emissions.
- Different colored smoke emissions can indicate different issues with the engine.
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