NEC Commercial Electrical Practice Test

Which term describes the process of ensuring no grounded conductor causes a reversal of designated polarity?

1. Grounding confirmation

2. Polarity check

3. Connection verification

4. Identification of leads

The correct answer is: Polarity check

The term that accurately describes the process of ensuring that no grounded conductor causes a reversal of designated polarity is "Polarity check." This process is essential in electrical systems to maintain the proper flow of electricity and ensure safety. A polarity check confirms that connections are made correctly, enabling devices to operate as intended and reducing the risk of electrical hazards due to incorrect polarity. The other choices, while related to electrical work, do not specifically address the concern of reversing polarity. Grounding confirmation refers to verifying that grounding systems are properly established and functioning, while connection verification typically involves checking the correctness of electrical connections without specifically focusing on polarity. Identification of leads is concerned with recognizing and labeling the different wires or conductors in a system, which doesn't directly address polarity issues. Conducting a polarity check is vital for safe electrical installations and preventing equipment damage.