What are the two general types of fire extinguishing systems?

The two general types of fire extinguishing systems are categorized as high rate of discharge and conventional systems. High rate of discharge systems are designed to release a large volume of extinguishing agent rapidly, which is particularly effective in situations where fast suppression of a fire is critical, such as in the protection of aircraft or large spaces that contain valuable equipment. These systems usually utilize agents like foam, dry chemicals, or gases to control and extinguish fires quickly.

Conventional systems, on the other hand, operate at a slower rate and may be more suitable for smaller areas or less intense fires. They often include a variety of extinguishing agents and methods, functioning in a way that allows for a more controlled approach to fire suppression. This distinction is important for understanding how different systems are applied based on the risk and environment they are designed to protect.

The other answer choices represent specific attributes or methodologies within fire suppression mechanisms but do not encompass the broad categories that include the rapidity of discharge versus conventional methods.