ASHRAE Study Guide 2026
Everything you need to pass the ASHRAE 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.
📋 ASHRAE Exam Format at a Glance
📚 ASHRAE Topics to Study (69)
✍️ Sample ASHRAE Questions & Answers
1. Since 2018, ASHRAE Standard 189.1 has provided the technical content for which model code?
ASHRAE, ICC, USGBC, and IES combined 189.1 and the IgCC into a single green code.
2. A crankcase pressure regulator (CPR) is primarily used to:
A CPR throttles suction gas so the compressor is not overloaded after defrost or at startup.
3. Which commissioning activity best makes sure building staff can operate new systems properly at turnover?
Structured, documented training checks that operators understand the sequences, maintenance and troubleshooting.
4. Where is liquid subcooling measured in a vapor-compression system?
Subcooling is the saturated condensing temperature minus the actual liquid line temperature.
5. An energy recovery ventilator costs $50,000 to install and saves $12,500 per year. What is the simple payback period?
Simple payback = first cost ÷ annual savings = 50,000 ÷ 12,500 = 4 years.
6. Which scheduling technique adjusts start dates to smooth out peaks in crew demand, possibly extending the schedule?
Resource leveling reschedules activities to resolve over-allocation and can lengthen the critical path.