Facts verified Oct 21, 2026 against North American Technician Excellence. Dates that have passed are removed automatically.
| Item | Detail | Official source |
|---|---|---|
| Number of questions (CHP-5 — each exam) | 30 questions per exam | North American Technician Excellence |
| Number of questions (Senior Level Efficiency Analyst) | 100 questions; open book | North American Technician Excellence |
| Number of questions (Traditional pathway — Core) | 50 questions | North American Technician Excellence |
| Number of questions (Traditional pathway — Specialty) | 100 questions | North American Technician Excellence |
| Time limit (CHP-5 — each exam) | 60 minutes per exam | North American Technician Excellence |
| Time limit (Senior Level Efficiency Analyst) | 240 minutes | North American Technician Excellence |
| Passing score (Senior Level Efficiency Analyst) | 75% | North American Technician Excellence |
| Passing score (Traditional pathway — Core and installation/service specialties) | 70% or higher | North American Technician Excellence |
| Exam fee (CHP-5 — renewal using continuing education) | $30 renewal fee | North American Technician Excellence |
| Exam fee (Live Online Proctoring) | Current prices available in myNATE | North American Technician Excellence |
| Validity (CHP-5 and Traditional pathway) | Two years | North American Technician Excellence |
| Renewal (CHP-5 and Traditional pathway) | 16 continuing education hours plus renewal fee | North American Technician Excellence |
| Delivery | In person or remotely proctored online | North American Technician Excellence |
| Eligibility (Senior Level Efficiency Analyst) | Two qualifying NATE Service specialty certifications | North American Technician Excellence |
| Testing window | On demand through approved testing organizations | North American Technician Excellence |
| Testing window (CHP-5) | Up to six months between exams | North American Technician Excellence |
Facts verified Oct 21, 2026 against North American Technician Excellence. Dates that have passed are removed automatically.
Interactive NATE - North American Technician Excellence resources on PracticeTestGeeks, free to start:
Try these questions from our free NATE - North American Technician Excellence practice tests. The correct answer and an explanation follow each question.
What does a suction line accumulator protect in a refrigeration system?
Answer: B. Compressor from liquid refrigerant slugging
The accumulator traps liquid refrigerant on the suction line, boiling it off slowly rather than allowing it to enter and damage the compressor.
What is the function of the delayed oil valve (solenoid valve) on some oil burners?
Answer: B. Stop oil flow immediately on burner shutdown to prevent after-drip and after-fire
The delayed oil valve closes instantly when the burner shuts off, preventing oil drip into the combustion chamber that could cause after-fire and smoke.
What EPA regulation governs refrigerant handling and requires recovery before service of commercial refrigeration equipment?
Answer: B. EPA Section 608
EPA Section 608 prohibits venting refrigerants and requires certified technicians to recover refrigerant before opening any refrigerant circuit.
What annual maintenance item is most critical for oil burner efficiency?
Answer: B. Replacing the nozzle and cleaning the strainer, electrodes, and heat exchanger
An annual tune-up including nozzle replacement and cleaning ensures complete combustion, maximum efficiency, and safe operation.
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