Psychrometrics and Basic HVAC System Calculations Practice Problems for the HVAC&R Exam
The e-book contains more than 40 problems, solved in great detail in 75+ pages.
The exam specifications in effect since April 2017 state that approximately 8 of the 32 problems (25%) from the “Psychrometrics” topic will be in the morning “Principles” portion of your HVAC&R exam. Reviewing all the problems in this book will prepare you for all these problems in the morning “Principles” portion. Additionally, the problems in this book provide additional review for the “Energy/Mass Balances” topic, which is expected to contain 5 of the 32 problems (16%) of the “Principles” portion.
The exam specifications also state that the “Heating/Cooling Loads” topic comprise 8 of the 48 problems (17%) in the “Applications” portion of the exam. The problems in section 8 of this book are designed to help you review this topic. Furthermore, cooling towers are listed as one of the relevant examples of “Equipment and Components” in the afternoon “Applications” portion. The problems in section 7 of this ebook are designed to help you cover this topic.
This study problems book works on what we call the “principle of progressive overload”. With this technique you start with very easy problems and smoothly progress towards more complex problems. A good example of progressive overload is the story of the famous wrestler Milo of Croton in ancient Greece. This extraordinarily strong man was allegedly capable of carrying a fully grown bull on his shoulders. He was reported to have achieved this tremendous strength by walking around town with a new born calf on his shoulders every single day. As the calf grew, so did the man's strength.
We recommend you work the problems in this book in the order they are presented. Within each section of the book, the first problems will feel “light”, like carrying that baby calf – you might even be tempted to skip them. We strongly urge you to resist this temptation. As you progress, the problems become harder, but the work you've been putting in with all the previous problems will bear fruit. You will be pleasantly surprised at how relatively easy those “hard” problems will seem. You will soon be carrying intellectual bulls on your shoulders!
When you purchase access to the e-book you also obtain access via email to our technical advisors that will answer any question you might have about any of the problems in the e-book. Typical response time is less than 24 hours.