Maintenance of teaching aid devices should be performed by which personnel?

• A. School administrators
• B. Students
• C. Only qualified repair personnel
• D. Custodians

Answer: (C)

Maintenance of teaching aid devices must be done by individuals who have the proper training and authority to service electrical and mechanical equipment. Only qualified repair personnel possess the knowledge, skills, and safety understanding to diagnose, repair, and service devices, including following proper lockout/tagout procedures, verifying power is isolated, and confirming safe operation after work. This reduces the risk of electric shock, fire, malfunction, or improper repair.

Other roles, such as administrators, custodians, or students, may handle basic cleaning or reporting issues, but maintenance tasks that involve repair, adjustment, or calibration require qualified personnel to ensure safety and reliability of the equipment.