Which of the following is NOT listed as a second due truck role?

• A. Secondary ladders
• B. Blowers
• C. Lighting
• D. Thermal imaging

Answer: (D)

Second arriving trucks are expected to perform support tasks that aid the attack and interior teams: bringing additional ladders for access and rescue (secondary ladders), providing forced ventilation with a blower to clear smoke, and setting up lighting to improve visibility and safety at the scene. Thermal imaging, while highly useful for locating hot spots or victims, isn’t typically listed as a fixed second due truck role. It’s usually deployed by the first arriving unit or by a dedicated operator or incident command as needed, rather than being a standard second due duty.