Which of the following is true about the role of a technician in power monitoring?

The role of a technician in power monitoring encompasses a wide range of responsibilities focused on the efficiency and reliability of electrical systems. Monitoring various parameters, such as voltage, current, power factor, frequency, and harmonics, is crucial to assessing the overall health and performance of these systems. By keeping track of these specific metrics, technicians can identify inefficiencies, potential issues, and areas for improvement, ultimately helping to ensure that electrical systems operate at optimal efficiency. This holistic approach is essential not only for maintaining functionality but also for minimizing energy costs and preventing equipment failure.

In contrast, checking voltage levels alone would not provide a complete picture of system performance, as it overlooks other critical factors that can impact efficiency. Solely conducting maintenance on light fixtures limits the technician's scope to just one aspect of electrical systems. Additionally, while replacing circuit breakers may be a necessary task, it does not encompass the broader monitoring responsibilities that are integral to ensuring system efficiency. Therefore, the emphasis on monitoring diverse parameters reflects the comprehensive role technicians play in power monitoring and system optimization.