Elevator Mechanic Practice Exam

Question: 1 / 400

If the reverse phase relay detects a phase loss or phase reversal, what will happen?

The elevator will continue to operate normally

The elevator will stop and an alarm will trigger

When a reverse phase relay detects a phase loss or phase reversal, it is designed to protect the elevator system from potential damage caused by improper electrical conditions. The correct outcome is that the elevator will stop and an alarm will trigger.

In scenarios of phase loss or reversal, the relay serves as a safety mechanism. The elevator system relies on a balanced power supply to function correctly. If there is a disruption to that balance, continuing operations could lead to equipment failure, unsafe conditions for passengers, or mechanical damage.

Therefore, the elevator will not continue to operate normally under these conditions, as this would pose significant safety risks. Instead, the mechanism ensures that the elevator is immediately halted and alerts the relevant personnel to the issue, maintaining safety protocols.

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The door will lock immediately

Nothing will happen

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