ASNT Industrial Radiography Radiation Safety Practice Test

What are the two basic types of radiation?

1. Alpha and Beta

2. Gamma and X-ray

3. Particulate and Electromagnetic

4. Neutron and Proton

The correct answer is: Particulate and Electromagnetic

The correct answer identifies the two fundamental categories of radiation based on their nature. Particulate radiation consists of discrete particles, such as alpha particles and beta particles, which have mass and can carry electric charge. Electromagnetic radiation, on the other hand, is composed of waves or photons, which have no mass and no charge. This category includes gamma rays and X-rays. Understanding this distinction is crucial in fields like industrial radiography because different types of radiation interact with matter differently, affecting how they are used in imaging, safety protocols, and protective measures. Recognizing these categories helps professionals effectively assess radiation safety and implement appropriate guidelines for handling and exposure. The other options include specific examples of radiation types rather than the broader categories, focusing on particular subtypes rather than the fundamental classification that is identified in the correct answer.