Which code identifies the switch control relay?

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Study for the Signal Maintainer Test. Practice with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which code identifies the switch control relay?

Explanation:
In signaling diagrams, each device has a code that shows its function. Relays that control switches (points) are designated with a W prefix, and the second character identifies the specific relay. The code for the switch control relay in this set is Wz, which means this is the relay whose coil and contacts manage the switch operation. The other designators do not represent the switch-control function in this diagram, so they aren’t the correct identification. Always verify with the diagram legend, but here Wz is the label assigned to the switch-control relay.

In signaling diagrams, each device has a code that shows its function. Relays that control switches (points) are designated with a W prefix, and the second character identifies the specific relay. The code for the switch control relay in this set is Wz, which means this is the relay whose coil and contacts manage the switch operation. The other designators do not represent the switch-control function in this diagram, so they aren’t the correct identification. Always verify with the diagram legend, but here Wz is the label assigned to the switch-control relay.

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