Conductive (Direct Connection) method: Which statement is true?

• A. It requires one cable connected to the target line and the other to the ground.
• B. It is ALWAYS the least preferred method.
• C. It cannot determine depth.
• D. It uses only induction.

Answer: (A)

In the Conductive (Direct Connection) method, a true electrical circuit is created by attaching one transmitter lead to the buried utility you’re trying to locate and the other lead to the earth as the return path. The transmitter pushes current into the line through the direct connection, and that current returns through the ground, allowing the receiver to pick up the signal along the surface and trace the path of the utility. This direct connection is what distinguishes it from purely inductive methods, which couple energy into a line without a physical connection.

That’s why the statement is true: you need one cable tied to the target line and the other connected to the ground to complete the circuit and enable detection. It isn’t inherently the least preferred method in all situations—it's chosen for situations where a strong, direct signal and possible depth information are advantageous, though access or safety considerations can affect its use. And it does not rely solely on induction; the direct connection provides a different mode of signal transfer compared to inductive methods.