What is a recommended practice for storing a school bus during winter months?

Answer: B — Apply the parking brake and ensure the system is free of moisture

Applying the parking brake and ensuring that the braking system is free of moisture is a recommended practice for storing a school bus during winter months because it helps to prevent the brake components from freezing or corroding. Moisture can lead to rust and other forms of degradation that can impair brake performance when the bus is brought back into service. By ensuring the system is dry, you reduce the risk of brake failure or other complications that may arise when the vehicle is used after a prolonged period of inactivity. Additionally, applying the parking brake while ensuring moisture is eliminated can help keep the brake components engaged, preventing any issues related to the brake pads or shoes sticking to the drums or rotors. This practice maintains the integrity of the braking system throughout the winter, ensuring the bus will be safe and reliable when needed again. Other practices, such as keeping the bus in a heated garage without applying the parking brake, may sound beneficial but can lead to problems since brakes can stick if not properly maintained. Draining all fluids and leaving the vehicle unmaintained can cause significant long-term damage to various systems, while using a cover that traps heat can lead to condensation buildup, ultimately creating moisture issues.