Years ago, when I was a resident and the ABR Core Exam was still novel, the ABR offered a lengthy “ABR CORE Examination Study Guide” PDF, which–in addition to over a hundred pages of endless bullet points listing every conceivable topic in radiology–included 57 official practice questions at the end (with an answer key).
They took that down years ago. But, thanks to the miracle that is The Internet Archive, you can still enjoy a copy of that PDF here. Well worth doing in the final weeks leading up to the June exam. Enjoy!
(Other nonofficial question resources are discussed here.)
((Lest there be any confusion, I have no working relationship with the ABR. In fact, I’m probably a persona non grata. These are just questions that they once posted on a public-facing website.))