When operating a radio controlled crane, the operator must never operate the crane:

When operating a radio controlled crane, the operator must never operate the crane:

• A. At night
• B. Blindly
• C. Without a load
• D. Without a signal person

Answer: (B)

The fundamental rule is you must be able to see and understand what the crane and load are doing in your work area. Operating a radio controlled crane without a clear, visual view of the surroundings and load path is unsafe because hazards can be hidden from view—people, overhead wires, or obstructions can suddenly come into the movement path. Even if you have a spotter or signals, you still need to see the area to confirm that the signals align with actual conditions. Therefore, you should never operate blindly. The other options can be addressed with proper conditions: lighting and night operation can be managed with adequate illumination; moving an unloaded crane is sometimes necessary for positioning; and a signal person is used to communicate clear instructions, but none of these by themselves guarantee safety if the operator cannot see what’s happening.

The fundamental rule is you must be able to see and understand what the crane and load are doing in your work area. Operating a radio controlled crane without a clear, visual view of the surroundings and load path is unsafe because hazards can be hidden from view—people, overhead wires, or obstructions can suddenly come into the movement path. Even if you have a spotter or signals, you still need to see the area to confirm that the signals align with actual conditions. Therefore, you should never operate blindly.

The other options can be addressed with proper conditions: lighting and night operation can be managed with adequate illumination; moving an unloaded crane is sometimes necessary for positioning; and a signal person is used to communicate clear instructions, but none of these by themselves guarantee safety if the operator cannot see what’s happening.