CFC Study Guide 2026
Everything you need to pass the CFC exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CFC Exam Format at a Glance
📚 CFC Topics to Study (21)
✍️ Sample CFC Questions & Answers
1. What property makes chlorofluorocarbons (CFCs) harmful to the ozone layer?
Chlorofluorocarbons (CFCs) are harmful to the ozone layer because when they reach the stratosphere, intense ultraviolet (UV) radiation breaks them down. This process releases highly reactive chlorine atoms. These chlorine atoms then act as catalysts, repeatedly destroying ozone molecules, which depletes the protective ozone layer and allows more harmful UV radiation to reach Earth.
2. In the context of CFC certification, what is the most important consideration when implementing automotive air conditioning service?
When implementing automotive air conditioning service, CFC professionals must ensure alignment with industry standards and stakeholder needs. Hasty implementation without proper planning often leads to compliance issues and suboptimal outcomes.
3. Which of the following best describes a key competency required for system charging & evacuation in CFC practice?
CFC professionals working in system charging & evacuation need analytical skills to assess situations, communication skills to convey findings, and ethical judgment to make sound decisions.
4. When a CFC professional encounters an unfamiliar challenge in refrigerant cylinder & storage safety, what is the recommended first course of action?
Professional practice requires a methodical approach to unfamiliar challenges: research the applicable standards, consult experts when needed, and document the reasoning for the chosen approach.
5. What physical property difference most readily distinguishes R-410A from R-22 using manifold gauges?
R-410A operates at pressures approximately 50-70% higher than R-22, which is a key distinguishing characteristic visible on manifold gauges in the field.
6. What must technicians do after servicing equipment containing refrigerant?
After servicing equipment containing refrigerant, technicians are legally required by EPA regulations to document the recovery and recycling (or reclamation) of the refrigerant. This record-keeping includes details such as the type and quantity of refrigerant recovered, the date, and the equipment used. Documentation ensures accountability, helps track refrigerant usage, and demonstrates compliance with environmental protection laws.