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U4 questions and answers certified 2024
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U4 questions and answers certified 2024
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U4: O2 SensorsAn EGO sensor is excited by _________ in the exhaust system. - correct
answer ✔oxygen
single-wire O2 sensor - correct answer ✔EGO sensor
monitors current to calculate the air/fuel mixture - correct answer ✔UEGO
sensor
control module supplies a 5-volt reference to the element that acts as a
variable resistor - correct answer ✔titanium dioxide sensor
heated sensor that generates its own voltage - correct answer ✔zirconium
sensor
A UEGO sensor monitors the air/fuel mixture in the __________ cavity. -
correct answer ✔detection
A titanium dioxide sensor acts as ________ that uses a 5 volt reference
signal. - correct answer ✔variable resistor
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