What is the primary purpose of a catalytic converter?
Correct!
Wrong!
Catalytic converters reduce harmful emissions by converting them into less toxic gases.
Which tool is MOST appropriate for cutting exhaust pipes?
Correct!
Wrong!
Exhaust pipe cutters provide clean cuts without distorting the pipe.
What is the function of an oxygen sensor in the exhaust system?
Correct!
Wrong!
Oxygen sensors monitor exhaust gas oxygen content to help the ECM maintain optimal air-fuel ratio.
Which of these materials is commonly used for high-performance exhaust systems due to its corrosion resistance?
Correct!
Wrong!
Stainless steel offers durability and corrosion resistance for exhaust components.
What is the purpose of a flex pipe in an exhaust system?
Correct!
Wrong!
Flex pipes accommodate engine movement and prevent exhaust system damage.
Which of these symptoms would MOST likely indicate a leaking exhaust manifold?
Correct!
Wrong!
Exhaust leaks often produce a ticking noise that changes with engine speed.
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What is the proper sequence for tightening exhaust manifold bolts?
Correct!
Wrong!
Following the manufacturer's torque sequence prevents warping and ensures proper sealing.
Which component is responsible for reducing exhaust noise?
Correct!
Wrong!
Mufflers use chambers and baffles to dissipate sound waves.
What special precaution should be taken when working with exhaust components on hybrid vehicles?
Correct!
Wrong!
Hybrid vehicles may have high-voltage components near exhaust systems.