Elevator Mechanic Practice Exam

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What is the term for the method to ensure safety when replacing a resistor on an elevator car?

Ensure LOTO and verify no voltage
Inspect the resistor
Review service history
Use a resistance meter

The correct answer is: Ensure LOTO and verify no voltage

The method to ensure safety when replacing a resistor on an elevator car involves the implementation of Lockout/Tagout (LOTO) procedures and verifying that there is no voltage present. This is crucial because it protects the technician from electrical hazards while performing work on the elevator system. Lockout/Tagout involves isolating the electrical power source and tagging it to prevent accidental re-energization. Verifying that there is no voltage ensures that the technician is working in a safe environment, free from the risk of electrical shock. Although inspecting the resistor, reviewing service history, and using a resistance meter are important practices in maintenance, they do not directly address the immediate safety concerns associated with replacing electrical components. These methods are part of a comprehensive approach to maintenance, but ensuring safety through LOTO and confirming that there is no voltage must always be the first step when dealing with electrically powered equipment like elevators. This proactive safety measure significantly reduces the risk of injury during maintenance tasks.