Fire Apparatus Category Type D is defined by which weight configuration?

• A. 24,000 lb Single steer axle.
• B. 62,000 lb tandem axle.
• C. 52,000 lb tandem rear drive steer axle.
• D. 33,500 lb Single drive axle.

Answer: (C)

The key idea here is that Fire Apparatus Category Type D is defined by a specific heavy axle and weight setup. In this material, Type D corresponds to a vehicle with a tandem rear axle arrangement totaling about 52,000 pounds, where the rear axles are both driven and include a steerable element. This weight distribution marks the heaviest, multi-axle configuration the course uses to differentiate the categories and to signal the extra handling and braking considerations such a heavy setup requires.

Why this fits best: a 52,000-pound tandem rear drive steer configuration identifies a vehicle that is significantly heavier and more complex to maneuver than lighter layouts. The steerable rear axle helps with steering control under heavy load, which is a defining characteristic of Type D in this context. The other configurations describe lighter or differently arranged axles and do not match the designated Type D definition in this material.