An Electrical Worker can use data on a service sticker affixed to electrical equipment to determine if tested and inspected within the recommended maintenance frequency.

• A. Service sticker affixed to electrical equipment
• B. Maintenance manual
• C. Warranty card
• D. Installation tag

Answer: (A)

The main idea is that on-the-spot verification of an equipment’s maintenance timing comes from a record kept right on the unit. A service sticker affixed to the electrical equipment is specifically placed there by the technician after testing, showing when the last service was done and often when the next inspection is due. This lets a worker quickly confirm whether the equipment has been tested within the recommended maintenance frequency, without hunting through manuals or separate files.

The sticker acts as immediate, visible proof of ongoing compliance with the maintenance schedule. It provides a concrete date reference for the last test and the due date, which is exactly what you need to determine if the equipment is current with its inspections.

The maintenance manual, while it contains procedures and intervals, does not prove that a particular piece of equipment has been tested recently. The warranty card relates to product coverage and isn’t a maintenance log. The installation tag typically records installation details like date and settings, not ongoing maintenance history.

So, the best answer is the service sticker affixed to the electrical equipment.