Which engine type is required for ARFF vehicles?

• A. Gasoline
• B. Diesel
• C. Turbine
• D. Rotary (Wankel)

Answer: (B)

Airport Rescue and Firefighting (ARFF) vehicles are specifically designed to handle aircraft emergencies, including fires, rescues, and spills. The required engine type for these vehicles is diesel.

Diesel engines are preferred for ARFF vehicles due to several important characteristics. First, diesel engines are more fuel-efficient and have a greater torque output compared to gasoline engines, which is critical for the heavy-duty requirements of ARFF operations. This efficiency allows for longer operational times without needing to refuel, which is crucial during emergencies.

Moreover, diesel engines tend to be more durable and can withstand the rigors of firefighting scenarios, such as extreme heat and stress from heavy loads. They also have higher compression rates, which contribute to their ability to operate effectively in tough conditions.

While gasoline engines are common in many vehicles, their performance does not meet the specialized needs of ARFF operations. Turbine engines and rotary engines, while valuable in specific applications, are not standard for firefighting vehicles due to factors such as maintenance challenges and cost considerations. Thus, the selection of diesel engines for ARFF vehicles is aligned with the operational demands and safety requirements inherent to airport rescue and firefighting activities.