Transcribed image text: Question Completion Status: 2 pointsSav QUESTION 10 Which of the following is NOT true regarding National Ambient Clean Air Standards O Primary standard are set for primary pollutants and secondary standards for secondary pollutants O Primary standards are intended to protect sensitive populations O Secondary standards are intended to protect the …
Which of the following is true of catalytic converters? A lean exhaust is required to oxidize hydrocarbons (HC) and carbon monoxide (CO). Technicians were discussing the construction of a catalytic converter. Technician A stated that the ceramic substrate in monolithic converters is not restrictive. Technician B stated that monolithic …
Test 2- environmental Flashcards | Quizlet
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which of the following is true regarding access to safe drinking water. a substantial portion of people in less developed countries do not have access to safe drinking water. Because it flows a natural cycle, water is potentially a _____ resource … Which of the following is true regarding catalytic converters? ***
Which of the following does NOT hold true regarding indoor air pollution? A. Indoor air pollution causes more deaths than outdoor air pollution. B. Indoor air pollution is only a health risk in developing countries. C. CO is an indoor air pollutant. D. Respiratory problems are the primary health issue. E. VOCs are indoor air pollutants.
People Also Ask which of the following is true regarding catalytic converters
What did the technicians argue about the working of a catalytic converter?
Technicians were arguing about the working of a catalytic converter. Technician A stated that a catalytic converter can operate when it is cold. Technician B stated that a catalytic converter must be heated close to 500°F before it starts working. Which of the following statements about this scenario is true?
What temperature must a catalytic converter be heated to start working?
Technician B stated that a catalytic converter must be heated close to 500°F before it starts working. Which of the following statements about this scenario is true? Only technician B’s assessment is accurate.
What should the air-fuel mixture be for Best Performance from catalytic converter?
Washcoat Two technicians are discussing catalytic converters. Technician A says that the exhaust mixture must be at stoictiometric for the best efficiency. Technician B says that the air-fuel mixture must be leaner than 14.7:1 for best performance from a three-way catalytic converter. Which technician is correct? Technician A only
Which assessment is accurate for a catalytic converter diagnosis?
Both technician A’s and B’s assessments are accurate. Which of the following is true of catalytic converter diagnosis? If the vacuum pressure of an engine at 2,500 RPM is equal to the vacuum reading when the engine is at idle, the exhaust system is not restricted.