What is the 14 volt DC tower common code?

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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

What is the 14 volt DC tower common code?

Explanation:
In signaling practice, two-letter codes are used to label what each power line or component is, so technicians can quickly identify them on drawings and in the field. For a 14-volt DC tower, the code Tc is used to designate the tower common—the shared return path for the tower’s DC circuits. That makes Tc the specific tag you look for when locating the common reference point, testing voltages, or tracing circuits that share the same supply. The other codes correspond to different parts of the tower power or equipment, not the common return, so they wouldn’t be used to label the shared conductor.

In signaling practice, two-letter codes are used to label what each power line or component is, so technicians can quickly identify them on drawings and in the field. For a 14-volt DC tower, the code Tc is used to designate the tower common—the shared return path for the tower’s DC circuits. That makes Tc the specific tag you look for when locating the common reference point, testing voltages, or tracing circuits that share the same supply.

The other codes correspond to different parts of the tower power or equipment, not the common return, so they wouldn’t be used to label the shared conductor.

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