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CBDT practice questions - frequently asked questions

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

The CBDT exam spans 5 domains: Bone Concepts (25% of the exam); Radiation Safety and Science (11% of the exam); Technology and Equipment (14% of the exam); Scan Acquisition (31% of the exam); Scan Analysis (19% 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: Scan Acquisition 31%; Bone Concepts 25%; Scan Analysis 19%; Technology and Equipment 14%; Radiation Safety and Science 11%.

The CBDT exam has 150 questions and is completed in 3 hours 30 minutes. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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