What is the effective range and duration for an 18lb PKP extinguisher?

The 18 lb PKP (Purple K Powder) extinguisher is designed for class B fires, which include flammable liquids like gasoline and oil. The effective range and duration of a fire extinguisher are crucial factors in ensuring it can adequately combat a fire before needing to be refilled or replaced.

The correct choice provides an effective range of 19 feet and a discharge duration of 10 seconds. This range indicates that the extinguisher can project the extinguishing agent far enough to safely target a fire, allowing the operator to maintain a safe distance while effectively suppressing the flames. The 10-second duration is also significant as it gives the user enough time to aim and apply the agent effectively to extinguish the fire or control it until additional help arrives.

Understanding the effective range and duration is essential for safe and efficient fire suppression, especially in emergency situations aboard a vessel. Knowing that the PKP extinguisher can reach a target area of 19 feet for up to 10 seconds allows crew members to use this equipment strategically to maximize their fire-fighting efforts.