Exam topic · Type sections
Safety
The hazards of pressurized refrigerant and oxygen-displacing gases, conceptually. Exam questions test recognition of hazards, not field procedures.
The figures that belong to this topic
- Safety appears in every type section; the specific pressure hazards differ by appliance class.
How to study it
Read the topic in your prep material once for structure, then drill it through the free practice questions, which cite the regulation paragraph behind every answer. On a closed-book exam the citations are your study tool, not your crutch: they teach you why the answer is what it is.
The other topics
| Core | Environmental impact |
| Core | Laws and regulations |
| Core | Changing industry outlook |
| Type sections | Leak detection |
| Type sections | Recovery techniques |
| Type sections | Shipping |
| Type sections | Disposal |
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