Emissions Control & Environmental Compliance Flashcards
7 cards from real CPT practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Emissions Control & Environmental Compliance flashcards as text
A process technician notices a relief valve on a process vessel has opened and released vapor to atmosphere. Under LDAR regulations, what is the first required action?
Answer: Document the release and initiate corrective action within the regulatory timeframe
Relief valve releases must be documented and corrective action must be taken within the regulatory timeframe, typically requiring inspection and repair if the valve fails to reseat.
What is the primary difference between NSPS (New Source Performance Standards) and MACT (Maximum Achievable Control Technology) standards?
Answer: NSPS is based on best demonstrated technology; MACT is based on top-performing sources controlling HAPs
NSPS sets emission limits based on best demonstrated technology for criteria pollutants, while MACT sets limits for hazardous air pollutants based on the best-performing 12% of existing sources.
Under the Emergency Planning and Community Right-to-Know Act (EPCRA), what is a Tier II report?
Answer: An annual hazardous chemical inventory report submitted to state and local emergency planners
Tier II reports are annual chemical inventory reports that facilities storing hazardous chemicals above threshold quantities must submit to state emergency response commissions, local emergency planning committees, and local fire departments.
What is 'air toxics' monitoring and which EPA rule most commonly drives this requirement at process facilities?
Answer: Monitoring for hazardous air pollutants (HAPs) driven by MACT/NESHAP rules
Air toxics monitoring measures hazardous air pollutants (HAPs) and is primarily driven by National Emission Standards for Hazardous Air Pollutants (NESHAP) under MACT regulations.
A flare system's combustion efficiency drops below 98% during a high-flow event. Under EPA NSPS rules, what is the most likely compliance issue?
Answer: Potential violation of smokeless operation requirements and combustion efficiency standards
EPA NSPS requires flares to maintain at least 98% combustion efficiency, and visible black smoke indicates incomplete combustion, triggering potential violations of both smokeless operation and efficiency standards.
Which document must a process technician consult to determine the allowable emission rate for a specific piece of equipment at the facility?
Answer: The facility's air operating permit or permit-to-operate
The facility's air operating permit specifies the enforceable emission limits and operational conditions for each regulated emission unit.
What is the difference between 'potential to emit' (PTE) and 'actual emissions' for a process unit?
Answer: PTE is the maximum capacity emissions assuming continuous uncontrolled operation; actual emissions reflect real operating conditions
Potential to emit represents the maximum emissions a source could produce operating at full capacity with no controls, while actual emissions account for real operating rates, control efficiency, and downtime.