Power saw operations are safest when cutting on which types of surfaces?

The safest surfaces for power saw operations are horizontal and vertical. When cutting on a horizontal surface, the material is typically stable and allows for better control and precision, reducing the risk of slips or miscuts. This stability is crucial when handling powerful equipment like saws, as it minimizes the potential for accidents.

Vertical surfaces, while more challenging, can also be safe when proper techniques are employed. They allow for cuts to be made in spaces that wouldn't be accessible otherwise, although they require careful handling to ensure the workpiece remains secure.

The combination of horizontal and vertical surfaces provides a balanced approach to power saw operations, supporting effective and safe cutting practices. Other surface orientations, such as diagonal, may introduce complications related to stability and control, making them less preferable for safe operations.