Which statement about dry-pipe sprinkler systems is most accurate?

Dry-pipe sprinkler systems are designed to be filled with pressurized air or nitrogen instead of water. When a sprinkler head is activated due to heat from a fire, the pressurized air escapes, allowing water to enter the system from a water supply. The mention of accelerators and exhausters in relation to dry-pipe systems highlights their function in ensuring a rapid response to fire. Accelerators help increase the rate at which water can be released into the system, while exhausters remove air more quickly, facilitating faster water flow once a head is activated.

Understanding the role of these devices is crucial as they enhance the system's efficiency and effectiveness in delivering water to control or extinguish a fire. This is why the statement regarding accelerators and exhausters being quick opening devices for air and water is the most accurate in the context of dry-pipe sprinkler systems. Other statements do not accurately reflect how dry-pipe systems operate or their requirements.