PE HVAC and Refrigeration practice exam

80 questions · two sections of 40 · 8 hours · timed

The CBT format: 80 questions in two sections of 40 under one 8-hour clock, weighted across the 4 knowledge areas of the October 2025 NCEES specification. You get a score by knowledge area, the breakdown NCEES prints on its diagnostic report, and a worked solution for every problem.

Line drawing of a wide test center monitor showing a question with four answer circles beside a reference document, with a calculator, a wristwatch and earplugs

Before you start

Every problem has four options and one correct answer. Every value you need is in the problem, so you can work it with a calculator; the worked solution shows each step and names the mistake behind the most tempting wrong answer.
Within a section you can skip, go back, change answers and flag questions. Once you finish section 1 it stays closed, as on the real exam. The clock keeps running in background tabs and reloads; when time runs out, your answers are submitted.

Create a free account before you start

Create a free account to start. Every drill includes one free attempt. A PE Mechanical pass unlocks every full timed practice exam and unlimited drills for all three PE Mechanical exams.

Original practice problems written to the published NCEES exam specifications. Independent preparation, not affiliated with or endorsed by the National Council of Examiners for Engineering and Surveying (NCEES).