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

During crane operation, when is it necessary to consult the owner's manual?

1. When inspecting for maintenance

2. When changing a tire

3. When determining hoist line reeving

4. Manuals are not typically needed

The correct answer is: When determining hoist line reeving

Consulting the owner's manual is essential when determining hoist line reeving because this process involves specific configurations and setups that are unique to the type of crane being operated. The owner's manual contains crucial information about the manufacturer's specifications, including the correct number of parts of line, reeving patterns, and safety considerations that must be followed to ensure safe operation. Proper reeving affects load capacity, stability, and overall crane performance, making it critical to adhere to the guidelines outlined in the manual. In contrast, while it may be important to refer to the manual for maintenance inspections, it is not as directly linked to the precise operational needs as reeving. Changing a tire typically falls outside the scope of crane operation and is less likely to require consultation of the owner's manual. Lastly, the assertion that manuals are not typically needed overlooks the vital role they play in safe and effective crane operation, especially in more complex tasks like reeving.