Emissions Control & Environmental Compliance Flashcards
7 cards from real CTE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Emissions Control & Environmental Compliance flashcards as text
A technician finds that a vehicle's air pump (secondary air injection) is inoperative. Which emission is most likely to increase as a result?
Answer: Hydrocarbons (HC) and carbon monoxide (CO) during cold-start warm-up
The secondary air injection system pumps fresh air into the exhaust during cold start to oxidize HC and CO before the catalytic converter reaches operating temperature; its failure raises HC and CO levels.
Under the Resource Conservation and Recovery Act (RCRA), automotive shops that generate less than 100 kg of hazardous waste per month are classified as:
Answer: Very Small Quantity Generators (VSQG)
Facilities generating less than 100 kg of hazardous waste per month are classified as Very Small Quantity Generators (VSQG) under RCRA, with the least stringent regulatory requirements.
Which emission standard category, established by California's Air Resources Board, is assigned to zero-emission vehicles such as battery electric vehicles?
Answer: ZEV (Zero Emission Vehicle)
ZEV (Zero Emission Vehicle) is the CARB classification for vehicles that produce no direct tailpipe emissions, including battery electric and hydrogen fuel cell vehicles.
When a CTE automotive student replaces an oxygen sensor on a vehicle, why is it important to clear related DTCs and perform a drive cycle afterward?
Answer: To allow the ECU to relearn fuel trim values and confirm the repair with the oxygen sensor monitor
After clearing DTCs, a drive cycle allows the oxygen sensor readiness monitor to run, confirming the repair is successful and ensuring accurate fuel trim learning before re-inspection.
What is the primary environmental concern addressed by regulations on refrigerant recovery during A/C service?
Answer: Preventing refrigerant venting into the atmosphere, which contributes to ozone depletion or global warming
Refrigerants such as R-12 deplete stratospheric ozone, and even R-134a has a high global warming potential, so EPA regulations prohibit venting and require recovery to protect the environment.
A student notices a vehicle has a 'Check Engine' light on with a P0442 code (small EVAP leak detected). Which component should be inspected FIRST as the most common simple cause?
Answer: The gas cap for proper sealing and condition
A loose, damaged, or missing gas cap is the most common and easiest-to-fix cause of a small EVAP leak code, and should always be checked first.
In automotive CTE education, why is it important for students to understand National Emission Standards for Hazardous Air Pollutants (NESHAP) as they apply to auto body refinishing?
Answer: NESHAP regulates HAP emissions from spray painting operations, requiring compliant coatings and equipment
NESHAP for auto body refinishing limits hazardous air pollutant emissions from spray coating operations, requiring low-HAP coatings, compliant spray guns, and proper work practices.