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NCCER Electrical Module 9 Questions and Answers | Latest Version | 2024/2025 | Correct & Verified $10.04
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NCCER Electrical Module 9 Questions and Answers | Latest Version | 2024/2025 | Correct & Verified
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NCCER Electrical Module 9 Questions and Answers | Latest Version | 2024/2025 | Correct & Verified What is the difference between a conductor and an insulator? A conductor allows the flow of electrical current, while an insulator resists it. Why is it important to follow wire color code...

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  • January 4, 2025
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nccer electrical module 9 questions and answers

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  • NCCER Electrical Module 9
  • NCCER Electrical Module 9

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NCCER Electrical Module 9 Questions
and Answers | Latest Version | 2024/2025
| Correct & Verified
What is the difference between a conductor and an insulator?


✔✔A conductor allows the flow of electrical current, while an insulator resists it.




Why is it important to follow wire color codes in electrical systems?


✔✔To ensure safety, consistency, and easy identification of circuit functions.




What is the purpose of a junction box?


✔✔To safely house electrical connections and protect them from damage or exposure.




What is the significance of the National Electrical Code (NEC)?


✔✔It provides safety standards for electrical design, installation, and inspection to prevent

hazards.




Why must electrical connections be made securely?


✔✔To ensure a reliable connection, prevent overheating, and reduce the risk of electrical fires.


1

, What is the purpose of a voltage tester?


✔✔To check for the presence of electrical voltage in a circuit or equipment.




What is an ampere a measure of?


✔✔The flow rate of electric current in a circuit.




Why is overcurrent protection necessary?


✔✔To prevent excessive current from damaging conductors, equipment, or causing fires.




What is the function of a transformer in an electrical system?


✔✔To change the voltage level in a circuit, either stepping it up or stepping it down.




What is the purpose of a wire nut?


✔✔To securely join and insulate two or more electrical wires.




Why is it important to use the correct size conductor for a circuit?


✔✔To ensure the conductor can safely carry the current without overheating.

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