How should stabilization be adjusted when a vehicle is on a slope?

How should stabilization be adjusted when a vehicle is on a slope?

• A. Move the vehicle to level ground before stabilization.
• B. Use only straps to secure.
• C. Only place a single wheel chock and rely on handbrakes.
• D. Secure with cribbing and chocks at multiple contact points to prevent rolling or sliding.

Answer: (D)

On a slope, gravity raises the risk of movement, so stabilization must create a firm, multi-point restraint that prevents movement in all directions. Using cribbing to build a solid base and placing chocks at multiple contact points around the wheels locks the vehicle in place and distributes load, making it much harder for the vehicle to shift. Cribbing fills irregular gaps and provides a rigid surface, while chocks on both sides of each wheel resist rolling if the surface shifts or loads change. Relying on straps alone is unsafe on a slope because straps can slip, stretch, or fail under load, especially if the ground is uneven or terrain shifts. A single wheel chock with only the handbrake offers minimal protection and leaves the vehicle vulnerable to movement if the brake slips or the slope changes. Therefore, the best approach is to secure with cribbing and chocks at multiple contact points to prevent rolling or sliding before continuing with any extrication plan.

On a slope, gravity raises the risk of movement, so stabilization must create a firm, multi-point restraint that prevents movement in all directions. Using cribbing to build a solid base and placing chocks at multiple contact points around the wheels locks the vehicle in place and distributes load, making it much harder for the vehicle to shift. Cribbing fills irregular gaps and provides a rigid surface, while chocks on both sides of each wheel resist rolling if the surface shifts or loads change. Relying on straps alone is unsafe on a slope because straps can slip, stretch, or fail under load, especially if the ground is uneven or terrain shifts. A single wheel chock with only the handbrake offers minimal protection and leaves the vehicle vulnerable to movement if the brake slips or the slope changes. Therefore, the best approach is to secure with cribbing and chocks at multiple contact points to prevent rolling or sliding before continuing with any extrication plan.