A loader operator is securing a 15-tonne wheel loader on a flatbed trailer using chains and binders. The loader has four designated tie-down points. According to CSA Standard Z150, what is the minimum number of properly tensioned tie-downs required for this load?

Question: A loader operator is securing a 15-tonne wheel loader on a flatbed trailer using chains and binders. The loader has four designated tie-down points. According to CSA Standard Z150, what is the minimum number of properly tensioned tie-downs required for this load?

Answer options:

• Two tie-downs, one at the front and one at the rear.
• Three tie-downs, ensuring balanced tension. ✅ Four tie-downs, one at each designated tie-down point.
• Five tie-downs, including one over the bucket.

Correct answer: Four tie-downs, one at each designated tie-down point.

Explanation: For heavy machinery like a 15-tonne loader, CSA Standard Z150 typically requires a minimum of four tie-downs, one at each corner or designated attachment point, to prevent movement in all directions. Two or three tie-downs would be insufficient for this weight and type of load.