Final answer:
The term 'roofing a pole' is not standard in utility terminology, and though capping a pole can control rot, this process might not be specifically referred to as roofing. The high-voltage wires connected to metal towers are indeed held by insulating connectors but are bare, not insulated.
Step-by-step explanation:
The statement that “the term roofing a pole refers to nailing a metal cap on top of the pole to help control rot” is not typically how the term 'roofing a pole' is used. This term is not standard in engineering or electricity terminology regarding utility poles. However, it is true that capping a pole with a metal cap can indeed help in controlling rot by preventing moisture from entering the top of the wood pole.
Regarding the true or false question about high-voltage wires, the correct answer is (b) false. High-voltage wires that are connected to tall metal-frame towers are held aloft by insulating connectors, but these wires are not wrapped in insulating material. Instead, they are bare and designed to be separated from each other and grounded objects by sufficient air space to prevent electrical current from jumping across gaps.