Which statement is true regarding the safe operation of aerial devices?

The correct statement emphasizes the importance of preventative measures to ensure safe operation of aerial devices in various conditions. Applying freeze to exposed sliding surfaces can help mitigate the formation of ice, which is crucial for maintaining the functionality and safety of the equipment. This proactive step can enhance traction and mobility, helping to avoid accidents and difficulties that arise from icy conditions.

In contrast, operating aerial devices in high winds, such as those exceeding 50 mph, is generally unsafe due to the increased risk of instability and control problems. Removing ice with corrosive substances is not an advisable practice because it can damage the equipment or the surfaces it interacts with. Additionally, while aerial devices can be used on a variety of roof types, they are not limited strictly to flat roofs; therefore, the assertion that they should only be used on flat roofs does not accurately capture their versatility or usage guidelines.