Final answer:
In an instrumentation and control cable, the shield at the other end is isolated by folding it back and over it. The statement about high-voltage wires being wrapped in insulating material is false; they are held by insulating connectors but not wrapped. Grounding a conductor sets it at zero volts by connecting it to earth.
Step-by-step explanation:
Typically, in instrumentation and control cable, only one end is grounded, and the shield at the other end is isolated by folding it back and taping over it. The shield is crucial for preventing electrical noise and interference in cable communications, which is why its correct installation is vital.
High-voltage wires that are seen connected to tall metal-frame towers are in fact held aloft by insulating connectors, and contrary to some assumptions, these wires are not wrapped in insulating material, which makes the statement (16) false.
Grounding a conductor has the effect of fixing it at zero volts by connecting it to the earth with a good conductor. This principle is applied in various practical applications to ensure safety and proper functioning of electrical systems.