Loader Operator Certification Exam Prep · Question
An operator is securing a compact track loader onto a trailer using grade 70 transport chains. Each chain has a Working Load Limit (WLL) of 6,600 kg. The loader weighs 4,000 kg. If four chains are used in a crossed pattern (two forward, two rearward), what is the aggregate WLL of the securement system?
The aggregate WLL is the sum of the WLLs of all individual securement devices. With four chains each rated at 6,600 kg, the total aggregate WLL is 4 * 6,600 kg
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Question: An operator is securing a compact track loader onto a trailer using grade 70 transport chains. Each chain has a Working Load Limit (WLL) of 6,600 kg. The loader weighs 4,000 kg. If four chains are used in a crossed pattern (two forward, two rearward), what is the aggregate WLL of the securement system?
Answer options:
- 6,600 kg
- 13,200 kg ✅ 26,400 kg
- 33,000 kg
Correct answer: 26,400 kg
Explanation: The aggregate WLL is the sum of the WLLs of all individual securement devices. With four chains each rated at 6,600 kg, the total aggregate WLL is 4 * 6,600 kg = 26,400 kg. This significantly exceeds the minimum 50% of the loader's weight (2,000 kg), providing ample securement.
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