RHS drill: Radiation Characteristics and Protection

10 questions · Untimed · Explanation after each question

X-ray production, radiation physics and biology, units of measure, dose limits, operator and patient protection, consent and malfunctions. DANB weights this domain at 25% of the RHS exam.

Line drawing of a lead apron on a wall hanger, a clip-on dosimeter badge and an x-ray tubehead with a rectangular position indicating device

Before you start

Every question is single-answer multiple choice with four options and an explanation. DANB questions have three or four options and one best answer.
Check each answer to see the explanation before moving on. Checked answers cannot be changed.

Original practice questions written from DANB’s public exam outlines. Independent preparation, not affiliated with or endorsed by the Dental Assisting National Board (DANB).