AZ CR39 PRACTICE EXAM
COMPLETE
Question 1: What is the maximum operating pressure allowed for a hot water boiler installed under the Arizona CR-39 scope?
Choices:
1) 15 PSIG
2) 30 PSIG
3) 50 PSIG
4) 100 PSIG
Correct Answer: 30 PSIG
Explanation: According to the Arizona CR-39 scope, wet systems including hot water boilers are limited to 30 PSIG operating pressure and 220°F. Steam systems are limited to 15 PSIG.Page 1
Question 2: How many years of veri�able experience are required to apply for the Arizona CR-39 HVAC contractor license?
Choices:
1) 2 years 2) 3 years 3) 4 years 4) 5 years
Correct Answer: 4 years
Explanation: The Arizona Registrar of Contractors (ROC) requires 4 years of veri�able experience within the past 10 years to qualify for the CR-39 license.
Question 3: What is the primary scope of work permitted under the Arizona CR-39
Air Conditioning and Refrigeration license?
Choices:
1) Installation of new electrical service panels for HVAC equipment 2) Plumbing and piping for all building domestic water systems 3) Installation, alteration, and repair of refrigeration, evaporative cooling, and heating systems 4) Electrical wiring for all commercial building circuits Correct Answer: Installation, alteration, and repair of refrigeration, evaporative cooling, and heating systems Explanation: The CR-39 (Dual) license covers the installation, alteration, and repair of residential and commercial comfort air conditioning, heating, and refrigeration systems. It explicitly excludes the installation of new electrical service panels.Page 2
Question 4: What certi�cation is federally required for an Arizona CR-39 contractor to handle, recover, or purchase regulated refrigerants like R-410A?
Choices:
1) EPA Section 608 Universal Certi�cation 2) OSHA 30-Hour Certi�cation 3) NATE Heat Pump Certi�cation 4) ASHRAE Refrigerant Handling License
Correct Answer: EPA Section 608 Universal Certi�cation
Explanation: The EPA Section 608 Universal Certi�cation is required by federal law for technicians who maintain, service, repair, or dispose of equipment that could release ozone- depleting refrigerants or their substitutes.
Question 5: How many questions are on the Arizona CR-39 Air Conditioning,
Refrigeration & Heating Contractor Examination, and what is the passing score?
Choices:
1) 60 questions, 75% passing score 2) 80 questions, 70% passing score 3) 100 questions, 75% passing score 4) 120 questions, 70% passing score
Correct Answer: 80 questions, 70% passing score
Explanation: The o�cial Arizona CR-39 trade examination consists of 80 questions and requires a score of 70% or higher to pass.Page 3