Welcome to ABYC’s Air Conditioning & Refrigeration Certification Pre-Test! This quiz is intended to let you get a feel for the types and complexity of the questions on our professional level certification exams. While scoring well on this pretest is not a prerequisite for taking a class, your score should give an indication of whether you’re ready for the complete course. There are 15 questions in this quiz and we would recommend passing it with at least 12 correct answers before continuing on to the certification course.