Question 11Electricity & Electronics - 1st Asst/Chief

The correct answer is A) So the worker can select the proper PPE and voltage tester to use before contact with the circuit is made. This is the correct answer because the nominal voltage of a circuit is a key factor in determining the appropriate personal protective equipment (PPE) and testing equipment to use. Different voltage levels require different insulation ratings, voltage-specific meters, and other safety precautions. By determining the nominal voltage first, the worker can ensure they have the right equipment to safely work on the circuit and protect themselves from potential electrical hazards. The other options are incorrect because B) only mentions selecting the voltage tester, C) only mentions selecting the PPE, and D) suggests that determining the voltage is unnecessary if the circuit is properly tagged/locked-out, which is not the case. Knowing the nominal voltage is still important for selecting the appropriate safety equipment, even if the circuit is de-energized.