ASNT Industrial Radiography Radiation Safety Practice Test

Who is authorized to change out a radioactive source according to the NRC?

1. An untrained technician

2. A trained and qualified person authorized by the licensee

3. Any licensed radiographer

4. A health physicist

The correct answer is: A trained and qualified person authorized by the licensee

The correct response centers on the regulatory requirements set forth by the Nuclear Regulatory Commission (NRC). According to these regulations, only a trained and qualified individual who has been explicitly authorized by the licensee is permitted to change out a radioactive source. This ensures that the person handling radioactive materials has undergone the necessary training to understand both the safety protocols and technical aspects involved in the task, thereby reducing potential safety risks associated with the handling of radioactive sources. This level of authorization is crucial because it not only protects the individual involved but also ensures the safety of the surrounding personnel and the general public. Additionally, adherence to this standard helps maintain compliance with regulations designed to minimize radiation exposure and mitigate hazards related to radiation safety in industrial settings. The other options do not align with the NRC's requirements, as an untrained technician would lack the expertise required to handle radioactive sources safely, and while licensed radiographers may have training, they still must be specifically authorized by their licensee for this type of task. Similarly, a health physicist, while knowledgeable about radiation safety, does not automatically possess the requisite authority unless they are designated by the licensee to perform this specific action.