NGA 21 Locating And Marking Of Facilities Practice Test

Pipe locators consist of two major components?

The Transmitter and the Receiver The Antenna and the Receiver The Cable and the Transmitter The Receiver only

Correct Answer:

The Transmitter and the Receiver

Explanation:

Pipe locators work by introducing a signal into the buried line and then detecting that signal at the surface. The two major components are the transmitter and the receiver. The transmitter injects or energizes the signal into the pipe or tracer wire, creating a detectable field along the line. The receiver senses that signal and guides you to the pipe’s path and depth. Without a transmitter, there’s no signal to follow; without a receiver, you can’t locate the line. An antenna may be part of the apparatus, but it’s not the defining pair of major components. A system consisting only of a receiver can’t locate because there’s nothing to detect, and a separate “cable” component isn’t what defines the two essential parts.

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