DEQ Radiation Safety Practice Test

To effectively minimize exposure to radiation, the most effective strategies involve increasing distance from the source, using appropriate shielding, and limiting the time spent near the radiation source.

Increasing distance is crucial because the intensity of radiation decreases rapidly as you move further away from its source; this is known as the inverse square law. The farther you are from the radiation source, the less exposure you will receive.

Using shielding, which can involve materials that absorb or deflect radiation (such as lead, concrete, or specialized plastics), further protects individuals by blocking the radiation from reaching them. Specific types of shielding are used depending on the type of radiation, such as alpha, beta, or gamma.

Limiting time near the source is also vital, as the longer you are exposed, the higher the dose of radiation you will receive. By spending less time in the vicinity of radioactive materials or devices, you can significantly reduce your overall exposure.

The other options that involve staying close to the source, relying solely on clothing, or shutting down equipment do not adequately address the mechanisms of radiation exposure reduction or may not be practical or effective in real-world scenarios.