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OR-JP practice questions - frequently asked questions

Plain answers about how OR-JP 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 OR-JP exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The OR-JP exam spans 6 domains: Understanding of engineering and architectural drawings and plans sufficient to prepare a bill of materials and lay out a plumbing system; Ability to compute areas of regular plane figures, volumes of regular solids, slopes, offsets, clearances, and weights of piping; Selection and use of tools, materials and techniques commonly used in the plumbing trade; The Plumbing Specialty Code, administrative rules relating to plumbing and plumbers and general scientific principles covering hydraulics; A general knowledge of construction job safety and occupational safety standards; A basic understanding of disabled access provisions of the Oregon Structural Specialty Code related to plumbing. Every practice question on this site is tagged to one of these domains.

The OR-JP exam has 64 questions and is completed in 4 hours. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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