Which code is 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 is the Switch control relay?

Explanation:
Relays are labeled to show their function, so you can identify their role in the control system at a glance. In this coding scheme, the W family covers relays that operate track switches. The second character identifies the exact function, and Wz is the designation assigned to the switch control relay, so it is the correct choice. Other codes in the W family refer to different control tasks (for example, Wp and Wg), and Vb belongs to a different group with a separate purpose. So the switch control relay is indicated by Wz.

Relays are labeled to show their function, so you can identify their role in the control system at a glance. In this coding scheme, the W family covers relays that operate track switches. The second character identifies the exact function, and Wz is the designation assigned to the switch control relay, so it is the correct choice. Other codes in the W family refer to different control tasks (for example, Wp and Wg), and Vb belongs to a different group with a separate purpose. So the switch control relay is indicated by Wz.

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