How hard is the NHIE?

That works out to about 72 seconds a question. The clock starts when you see the first one and the testing unit shuts off at four hours. The short tutorial before the exam doesn't count against your time.

Of the 200 questions, 175 are scored. The other 25 are pretest questions EBPHI is trying out, and nothing marks which ones they are. Every question has to get your full attention.

70% of the exam is Domain 1, the inspection of the house itself. It splits into 13 tasks, and none of them is bigger than 7% or smaller than 4%. There's no one system you can lean on.

Even the smallest task is worth about 7 scored questions. Skip cooling or the interior and you give those away.

Domains 2 and 3 are 30% of your score, about 53 scored questions. They don't ask how a furnace works. They ask how you write it up.

• Domain 2, Analysis of Findings and Reporting (20%). Describing what you inspected and how, the limits of the inspection, defects, and what needs a closer look by a specialist.
• Domain 3, Professional Responsibilities (10%). The pre-inspection agreement, and quality, integrity, and objectivity on the job.

For all 19 tasks with their weights, see NHIE domain weights.

EBPHI says every question is referenced to a published source or to the agreement of its subject matter experts. The reference list includes its two NHIE manuals, the 2021 International Residential Code, the 2021 Life Safety Code, and the 2023 National Electrical Code.

That's why field experience alone falls short. The exam asks what the source says, in its own terms. Somebody who inspects well and words it differently can still pick the wrong option.

A panel of experts sets the passing point for each version of the exam, based on how hard each question is. You pass by reaching it. Nobody is graded against the room.

The one published pass rate is from Texas: 56.8% of first-time candidates passed there, on an exam that adds a state section. For what that number does and doesn't measure, see what is the NHIE pass rate.

Study in proportion to the outline, from the sources the exam uses, and practice at full length so four hours doesn't surprise you. For a plan, see how to study for the NHIE.