Which of the following is a standard method of verifying that equipment is safe for use before operation?

A visual inspection is a standard method of verifying that equipment is safe for use before operation. This process involves looking over the equipment to identify any visible signs of damage, wear, or malfunction, such as cracks, leaks, or frayed wires. By thoroughly examining the equipment visually, firefighters can ensure that it meets safety standards and is in proper operating condition before it is put to use.

While functional testing, safety check-lists, and performance evaluation are all important practices in the overall maintenance and safety protocols for equipment, the visual inspection serves as a preliminary step that is quick and effective for identifying obvious issues. This initial check can help prevent accidents and ensure that all equipment is ready for efficient and safe operation.