Which part of the locating system is described as an antenna array made of copper coils?

• A. The transmitter
• B. The locator receiver
• C. The grounding rod
• D. The pipe

Answer: (B)

The part described as an antenna array made of copper coils is the locator receiver. In a locating system, the transmitter energizes the line, creating an electromagnetic field in the ground. The receiver, with its coil-based antenna array, senses that field as you sweep over the area. The multiple coils help determine the direction and strength of the signal, which lets you pinpoint the line and estimate its depth. The grounding rod provides the return path for the signal, and the pipe is the object being located. So the copper-coil antenna array belongs to the locator receiver.