ASNT Industrial Radiography Radiation Safety Practice Test

For what purpose is a dosimeter primarily used?

1. To monitor environmental radiation

2. To record personal exposure to radiation

3. To measure machine malfunction

4. To ensure proper maintenance of radiographic devices

The correct answer is: To record personal exposure to radiation

A dosimeter is primarily used to record personal exposure to radiation. This device is crucial for individuals working in environments where they may be exposed to ionizing radiation, such as in industrial radiography. The main function of a dosimeter is to measure the amount of radiation absorbed by the wearer over a specific period, allowing for the assessment of individual exposure levels. This information is essential for health and safety purposes, as it enables both the worker and safety personnel to monitor and manage radiation exposure effectively. By keeping track of this exposure, dosimeters help ensure that levels remain within regulatory limits and contribute to the overall safety protocols of radiation-related work. In contrast, the other options serve different functions. Monitoring environmental radiation involves tracking radiation levels in surroundings rather than personal exposure. Measuring machine malfunction is related to equipment performance and safety rather than individual exposure. Ensuring proper maintenance of radiographic devices focuses on the operational integrity of equipment and does not directly pertain to personal exposure monitoring.