ASNT Industrial Radiography Radiation Safety Practice Test

Which of the following shows the required caution for high radiation areas?

1. 100 mR/h

2. 500 R/h

3. 50 mR/h

4. 10 R/h

The correct answer is: 100 mR/h

The correct answer indicates a radiation level of 100 mR/h, which represents a specific threshold for being classified as a high radiation area according to regulatory standards. High radiation areas are typically defined as those where an individual could receive a dose equivalent of more than 100 mR in one hour at a distance of 30 centimeters from the radiation source or from any surface that the radiation penetrates. This level is significant because it helps ensure that proper safety measures and protocols are in place to protect workers and the public from harmful radiation exposure. By identifying this level as a cautionary benchmark, those working in industrial radiography can implement appropriate safety practices, such as the use of shielding, restricted access to these areas, or the application of monitoring devices to ensure personnel are aware of the radiation hazards present. Recognizing and understanding these thresholds is essential for maintaining safety standards in environments where ionizing radiation is present.