Final answer:
The student should remove the control wire from the Greenlee Smart Bender before repositioning it for safety. High-voltage wires on towers are not insulated, and voltage in a wire can vary in a circuit diagram. Keep magnetic strips away from permanent magnets to avoid damage. The given statement is true option a.
Step-by-step explanation:
When dealing with the repositioning of electrical equipment such as the Greenlee Smart Bender, safety is paramount. It is true that the control wire should be removed before repositioning the bender to different orientations like vertical and horizontal positions. This is a safety precaution to prevent accidental energizing of the equipment, which could lead to electrical shocks or other hazards.
The Safety of High-Voltage Wires:
Answering the student's reference question, it is false that the high-voltage wires seen on metal-frame towers are wrapped in an insulating material. The wires are held aloft by insulating connectors called insulators, but the wires themselves are typically not insulated due to their high operating voltages and the impracticality of insulation at such scales.
Circuit Diagrams and Voltage:
As for circuit diagrams, the answer is false when assuming that the voltage is the same at every point in a given wire. Voltage drops occur across components within the circuit, and the voltage can vary from one point to another unless the wire connects components without resistance or it's an idealized example.
Magnetic Strips and Magnets:
Regarding magnetic fields and their effects on magnetic strips, the answer is true; it is not recommended to place credit cards with magnetic strips near permanent magnets. The magnetic field from the magnets can demagnetize the strip or change the encoded information, rendering the card unusable.