DANB-Radiation Safety-Operator Exam Latest Update 2025-2026 50 Questions and 100% Verified Correct Answers Guaranteed A+
0.5 rems/year - CORRECT ANSWER: What is the maximum permissible dose of
radiation allowed for pregnant dental personnel per year?
- 5 rems/year
- 2.5 rems/year
- 50 rems/year
- 0.5 rems/year
10 rem - CORRECT ANSWER: Based on the formula provided by the National Council
on Radiation Protection and Measurements, what is the maximum accumulated dose for a 20-year-old dental assistant?
- 10 rem
- 20 rem
- 35 rem
- 15 rem
3 rems - CORRECT ANSWER: According to the OSHA Ionizing Radiation Standard, the
maximum whole body dose per calendar quarter (3 months) is
- 18 rems.
- 7 rems.
- 3 rems
- 20 rems 1 / 2
5.0 rems/year - CORRECT ANSWER: Which of the following is the maximum
permissible dose of radiation allowed annually for occupationally exposed people?
- 0 rems/year
- 5.0 rems/year
- 50 rems/year
- 0.5 rems/year
- feet from the X-ray unit.
(To avoid scatter or leakage radiation, the operator must be at least 6 feet away from
the X-ray source. ) - CORRECT ANSWER: Unless the dental assistant is behind a
barrier, the assistant must never stand closer than
- 5 feet from the X-ray unit.
- 6 feet from the X-ray unit.
- 4 feet from the X-ray unit.
- 7 feet from the X-ray unit.
- feet.
(a primary barrier must be a minimum of 7 feet in height) - CORRECT ANSWER: The
height of a primary protective barrier must be at least
- 8 feet.
- 6 feet.
- 10 feet.
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