PE Mechanical Thermal Fluids

The exam includes 80 questions. The PE Mechanical exam uses multiple-choice questions as well as alternative item types (AITs). NCEES publishes the detailed specifications for each discipline, so download the Thermal and Fluid Systems specifications to see the topics and item formats covered.

The appointment time is 9 hours. It includes a 2-minute nondisclosure agreement, an 8-minute tutorial, 8 hours of exam, and a 50-minute scheduled break. Plan your pacing around roughly 8 hours of actual working time for 80 questions.

A $400 exam fee is payable directly to NCEES. Some licensing boards may also require you to file a separate application and pay an application fee as part of the approval process to qualify you for a seat. Check your board's registration procedures before registering.

None of your own. NCEES provides an electronic reference handbook and all specified design standards during the exam. The handbook and the standards listed on the exam specifications are the only reference materials allowed, and personal copies of any material are not permitted in the exam room.

Computer-based exam results are typically available 7–10 days after you take the exam. NCEES emails you instructions to view results in your MyNCEES account, and results include information specific to your licensing board on how to proceed based on your performance.

NCEES reports pass rates by examinee population. For Mechanical: Thermal and Fluid Systems, the published figures are 70% for first-time examinees (578 examinees) and 46% for repeat examinees (109 examinees), updated July 2026. Treat these as context, not a prediction of your own outcome.

The provided NCEES source pages do not state a retake policy, interval, or limit. Retake rules are set through your licensing board and NCEES registration procedures. Review your board's requirements and the NCEES Examinee Guide, the official guide to policies and procedures for all NCEES exams.

Start with the exam specifications to map the topic areas, then work through the reference handbook and the listed design standards until you can navigate them quickly. Add practice problems under timed conditions, and finish by reviewing scoring and reporting so you understand how performance is evaluated.

Candidates often lose time hunting through the handbook and standards instead of knowing their structure, and some prepare without checking the current exam specifications. Others misjudge pacing across 80 questions in 8 hours. Practice searching the electronic references and rehearse full-length timed sets before exam day.

The PE Mechanical exam is computer-based and administered year-round at NCEES-approved Pearson test centers. Register through your MyNCEES account by following the onscreen instructions. Availability is year-round, so you can schedule around your preparation rather than a single annual date.