What is a key difference between Type I and Type II ARFF apparatus?

What is a key difference between Type I and Type II ARFF apparatus?

• A. Type I is lighter and faster; Type II is heavier and slower.
• B. Type I has higher pump capacity and longer reach; Type II is smaller with lower capacity and is often used as a quick-response unit.
• C. Type I uses dry chemical; Type II uses water.
• D. Type I is for rescue; Type II is for medical.

Answer: (B)

The difference between Type I and Type II ARFF apparatus is their size, pump capacity, and role on the airfield. Type I is a larger, full-responder unit with higher pump capacity and longer reach, designed for sustained attack and larger incidents. Type II is smaller, with lower pump capacity, and serves as a quick-response unit to arrive fast, provide initial fire suppression, and support until a Type I unit arrives. This aligns with the choice describing higher pump capacity and longer reach for the larger unit, and a smaller, lower-capacity unit used for rapid response. It’s not about dry chemical versus water, or a strict rescue-versus-medical split, since ARFF apparatus are both firefighting and rescue-capable, and typically use water/foam systems.

The difference between Type I and Type II ARFF apparatus is their size, pump capacity, and role on the airfield. Type I is a larger, full-responder unit with higher pump capacity and longer reach, designed for sustained attack and larger incidents. Type II is smaller, with lower pump capacity, and serves as a quick-response unit to arrive fast, provide initial fire suppression, and support until a Type I unit arrives.

This aligns with the choice describing higher pump capacity and longer reach for the larger unit, and a smaller, lower-capacity unit used for rapid response. It’s not about dry chemical versus water, or a strict rescue-versus-medical split, since ARFF apparatus are both firefighting and rescue-capable, and typically use water/foam systems.