Final answer:
The question about a small-diameter wire carrying a low DC voltage being called a 'Blank' wire cannot be answered without further context. Transmission wires are not insulated and high voltage carries connotations of danger. Direct current can move through a neutral wire, voltage is not uniform in a circuit, and 'voltage' is commonly used to describe potential difference.
Step-by-step explanation:
The statement 'A small-diameter wire that carries a low dc voltage is called a(n) Blank wire' is not clear as written, since 'Blank' does not identify any known type of wire. Wires are not typically identified by the voltage they carry but rather by their gauge, material, and current-carrying capacity. Therefore, it is not possible to classify this statement as true or false without additional context regarding what 'Blank' is supposed to represent.
Regarding high-voltage transmission wires, the statement in question 16 is false. High-voltage wires, such as those connected to metal-frame towers, are indeed held aloft by insulating connectors; however, these wires are generally not wrapped in insulating material due to their high position away from people and objects and the impracticality of insulating such long spans of wire.
In terms of direct current (DC) and wire neutrality, it is indeed possible for a wire to carry a current and still be electrically neutral. This is because the wire itself does not gain or lose charge as electrons move through it; instead, the electrons are simply passing through the wire, moving from one atom to the next.
For the GRASP CHECK question, the answer is false. Voltage in a circuit is not necessarily the same at every point in a wire due to the potential drops that occur as current encounters resistance.
Lastly, it is indeed true that voltage is a more common term for potential difference, because this term conveniently refers to the difference in electric potential between two points.