What color is associated with marking electrical lines?

• A. Red
• B. White
• C. Yellow
• D. Purple

Answer: (C)

The color associated with marking electrical lines is yellow. This choice adheres to the American Public Works Association (APWA) color code, which provides standardized colors for various types of underground utilities to ensure safe excavation practices. Yellow specifically indicates the presence of power lines, which can include both overhead and underground electrical systems.

Using consistent color coding helps to prevent accidental damage to these lines during construction or digging activities, thereby enhancing safety for workers and the public. Understanding these color codes is essential for anyone involved in pipeline construction inspection, as it contributes to proper communication and hazard identification in the field.