Which item is NOT a category of Pyrotechnics?

• A. Signals
• B. Stimulators
• C. Flares
• D. Illuminations

Answer: (D)

Understanding how pyrotechnic devices are grouped by use is the key. In this framework, devices are organized by what they’re used for on the battlefield: signals are for communicating and coordinating with other units, stimulators are used to simulate effects for training or testing, and flares provide light or mark positions at a distance. Illumination describes a purpose—lighting up an area—but it isn’t listed as its own separate category in this classification. Many illumination needs are met by devices that fall under signals or flares depending on the mission, so illumination isn’t treated as a distinct category. That’s why the item labeled illuminations isn’t considered a category by itself.