A loader operator observes that the load on a float trailer shifts slightly to the right during transit. Upon inspection, it’s found that three chains were used on the left and only two on the right, all rated appropriately for the load. What is the most likely cause of the load shift?

Question: A loader operator observes that the load on a float trailer shifts slightly to the right during transit. Upon inspection, it’s found that three chains were used on the left and only two on the right, all rated appropriately for the load. What is the most likely cause of the load shift?

Answer options:

• The road was continuously sloped to the right.
• One of the chains on the left side was overtensioned. ✅ Insufficient and uneven distribution of tie-down forces.
• The trailer tires on the right side were underinflated.

Correct answer: Insufficient and uneven distribution of tie-down forces.

Explanation: Load shift is primarily caused by insufficient and uneven distribution of tie-down forces, allowing movement. Having more chains on one side than the other creates an imbalance in resisting forces against lateral movement. While road conditions or tire pressure could contribute, the direct cause related to securing is the tie-down method.