Ohio Volunteer Firefighter Practice Exam

When stabilizing a car on an incline, it is essential to prevent it from rolling in either direction. Placing chocks behind all four wheels ensures that the vehicle is securely stabilized. This prevents movement regardless of the inclination, reducing the risk of the vehicle rolling away while emergency responders are working around it.

Chocking both front and rear wheels is particularly important because a vehicle can roll both forwards and backwards on an incline. By placing chocks behind each wheel, both directions of potential movement are addressed, creating a safer working environment for firefighters and emergency personnel.

Using chocks only behind the front or rear wheels does not provide adequate stabilization, as the unchocked wheels can still move and compromise the vehicle's stability. Additionally, while placing chocks on the side opposite the incline might seem sufficient, it does not account for the risk of rolling in the direction the vehicle is facing. Thus, securing all four wheels with chocks is the safest and most effective approach.