Munitions Firefighting Practice Exam

Which of the following types of ammunition are cannon and autocannon ammunition?

1. 20 mm caliber cartridges

2. 30 mm caliber cartridges

3. 50 mm caliber cartridges

4. 60 mm caliber cartridges

The correct answer is: 20 mm caliber cartridges

Cannon and autocannon ammunition typically refers to rounds used in automatic and semi-automatic gun systems that are designed for rapid fire and are employed in a variety of military applications. The correct choice of 20 mm caliber cartridges aligns with this classification, as 20 mm rounds are commonly used in various autocannon systems. These rounds are prevalent in air defense systems and are designed for high-velocity fire, providing effective engagement against a range of aerial and ground targets. The significance of the 20 mm caliber is evident in its widespread use in military aircraft and vehicle-mounted weapons, which highlights its versatility and effectiveness for both anti-aircraft and anti-armor purposes. In contrast, the other calibers, while they can be associated with particular artillery systems or specialized applications, do not represent the standard classification of cannon and autocannon ammunition in the same way that 20 mm does. Thus, the distinction of 20 mm caliber cartridges as representative of cannon and autocannon ammunition is validated through their extensive operational history and recognized use in contemporary military technology.