Transmission lines can be overhead or underground.

Transmission lines can be overhead or underground.

• A. True
• B. False
• C. Not sure
• D. Both

Answer: (A)

Transmission lines can be installed in two main forms: overhead on towers or poles, and buried underground. Overhead lines are common because they’re quicker and cheaper to install and easier to repair or upgrade, though they’re exposed to weather and can affect the landscape. Underground lines sit in conduits or insulated cables, protected from weather and terrain, which is why they’re chosen in dense urban areas, under bodies of water, or where reliability and aesthetics matter; but they cost more to install and fault-finding or repairs can be slower. Because both methods are used in practice, the statement is true.

Transmission lines can be installed in two main forms: overhead on towers or poles, and buried underground. Overhead lines are common because they’re quicker and cheaper to install and easier to repair or upgrade, though they’re exposed to weather and can affect the landscape. Underground lines sit in conduits or insulated cables, protected from weather and terrain, which is why they’re chosen in dense urban areas, under bodies of water, or where reliability and aesthetics matter; but they cost more to install and fault-finding or repairs can be slower. Because both methods are used in practice, the statement is true.