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NRT practice questions - frequently asked questions

Plain answers about how NRT Exam Prep works: the exam, the questions, pricing, the free trial, and what you actually get.

No - and you should be wary of any site claiming otherwise. Every question here is original, written to mirror the style, difficulty, and judgment the real NRT exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The NRT exam spans 11 domains: General (7.7% of the exam); Health and Safety (10.0% of the exam); Building Science Topics (9.7% of the exam); Insulation (9.7% of the exam); Heating and Cooling Systems (9.7% of the exam); Domestic Water Heating Systems (7.7% of the exam); Appliances and Lighting (7.0% of the exam); Air Leakage (10.7% of the exam); Conditioned Air Distribution Systems (9.7% of the exam); Ventilation (8.7% of the exam); RESNET Rating System (9.7% of the exam). Every practice question on this site is tagged to one of these domains.

The domains are not weighted equally on the exam. By share of the marks: Air Leakage 10.7%; Health and Safety 10.0%; Building Science Topics 9.7%; Insulation 9.7%; Heating and Cooling Systems 9.7%; Conditioned Air Distribution Systems 9.7%; RESNET Rating System 9.7%; Ventilation 8.7%; General 7.7%; Domestic Water Heating Systems 7.7%; Appliances and Lighting 7.0%.

The NRT exam has 55 questions and is completed in 2 hours. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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