National Commission for the Certification of Crane Operators (NCCCO) Mobile Crane Practice Exam

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Study for the NCCCO Mobile Crane Test. Prepare with flashcards and multiple-choice questions, complete with hints and explanations for each. Ace your certification exam!

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According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the crane's rated capacity?

  1. 45%

  2. 50%

  3. 75%

  4. 85%

The correct answer is: 50%

The correct answer is that the total load while hoisting personnel must not exceed 50% of the crane's rated capacity according to OSHA regulations. This guideline is crucial for ensuring safety while lifting personnel because it helps to maintain a significant margin of stability and reduces the risk of accidents. By limiting the load to half of the crane's rated capacity, operators can manage dynamic forces that can occur during lifts, such as swinging or sudden stops. This percentage is established to account for the increased risks associated with lifting personnel, requiring more cautious operation than standard lifting procedures. It ensures that the crane remains stable and that the load does not exceed the limits that could lead to tipping or failure of the crane's structure. In addition, this guideline complies with recognized safety standards and practices, prioritizing the safety of workers. Other percentages like 45%, 75%, and 85% do not align with OSHA standards for personnel lifting and would not provide the same level of safety assurance as the specified 50%. Following the 50% rule helps mitigate risks associated with personnel lifts and enhances operational safety on job sites.

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