Which device should be placed against a vehicle wheel to prevent movement?

Which device should be placed against a vehicle wheel to prevent movement?

• A. Ropes
• B. Jacks
• C. Safety cones
• D. Wheel chocks

Answer: (D)

Wheel chocks are wedges placed against a vehicle wheel to block its motion. They fit tightly between the wheel and the ground and are positioned on the downhill side when a vehicle sits on a slope so the wheel can’t roll downhill. Ropes aren’t reliable for preventing movement—they can slip or come loose. Jacks are used to lift or support a vehicle, not to keep it from moving. Safety cones serve to warn or direct traffic, not to physically stop a wheel. Use wheel chocks any time a vehicle could roll, especially on inclines or when you’re working around the vehicle.

Wheel chocks are wedges placed against a vehicle wheel to block its motion. They fit tightly between the wheel and the ground and are positioned on the downhill side when a vehicle sits on a slope so the wheel can’t roll downhill. Ropes aren’t reliable for preventing movement—they can slip or come loose. Jacks are used to lift or support a vehicle, not to keep it from moving. Safety cones serve to warn or direct traffic, not to physically stop a wheel. Use wheel chocks any time a vehicle could roll, especially on inclines or when you’re working around the vehicle.