Certified Biomedical Equipment Technician (CBET) Practice Exam

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Why is disconnecting a device from power sources essential before servicing?

To save energy during repairs

To ensure the technician's safety and prevent electric shock

Disconnecting a device from power sources before servicing is crucial primarily for safety reasons. It protects technicians from the risk of electric shock, which can occur if they come into contact with live electrical components while working on or around the device. By ensuring that the device is completely powered down, technicians can safely perform repairs or maintenance without the concern of electrical hazards.

The other potential reasons, such as saving energy, allowing for software updates, or minimizing maintenance time, do not address the immediate safety risks involved in working with electrical equipment. While these factors may be beneficial in other contexts, they do not justify the primary need for disconnection from power during servicing, making safety the most compelling reason in this scenario.

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To allow for software updates

To minimize time during maintenance

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