What is the dose limit for all occupational exposures?

• A. 5 rem
• B. 50 rem
• C. 0.5 rem
• D. 15 rem

Answer: (A)

Workplace radiation protection centers on an annual cap on the dose a worker can receive, applied to the whole body as the measure of overall risk. This limit is set to keep the chance of long‑term effects, like cancer, at an acceptable level over a year of work. There are separate limits for specific tissues (such as the eye lens and the skin or extremities) because different tissues have different sensitivities, but the baseline is the annual whole‑body limit. The correct choice is the one that represents this standard annual whole‑body limit, since it reflects the general protection standard for all occupational exposures. The other options correspond to different tissue-specific limits or to values not used as the general whole‑body limit.