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NCCER Electrical Lv 1 MODULE 9 Conductors and Cables Questions and Answers | Latest Version | 2024/2025 | Correct & Verified £7.99
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NCCER Electrical Lv 1 MODULE 9 Conductors and Cables Questions and Answers | Latest Version | 2024/2025 | Correct & Verified
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NCCER Electrical Lv 1 MODULE 9 Conductors and Cables Questions and Answers | Latest Version | 2024/2025 | Correct & Verified How does the size of a conductor affect its resistance? Larger conductors have lower resistance, allowing for more efficient current flow. What is the purpose ...

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  • December 27, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nccer electrical lv 1 module 9 conductors and cabl

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  • NCCER Electrical Lv 1 MODULE 9 Conductors and Cabl
  • NCCER Electrical Lv 1 MODULE 9 Conductors and Cabl

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NCCER Electrical Lv 1 MODULE 9
Conductors and Cables Questions and
Answers | Latest Version | 2024/2025 |
Correct & Verified
How does the size of a conductor affect its resistance?


✔✔ Larger conductors have lower resistance, allowing for more efficient current flow.




What is the purpose of color coding in electrical wires?


✔✔ Color coding identifies the function of each wire, such as live, neutral, or ground, ensuring

safe and correct connections.




Why is aluminum sometimes used as an electrical conductor?


✔✔ Aluminum is lightweight, cost-effective, and provides sufficient conductivity for many

applications.




What is the function of a cable jacket?


✔✔ A cable jacket protects the wires inside from physical damage, moisture, and environmental

elements.




1

,How does temperature affect a conductor's performance?


✔✔ Higher temperatures can increase resistance in a conductor, reducing its efficiency and

potentially causing overheating.




What is a multi-stranded conductor, and where is it used?


✔✔ A multi-stranded conductor is made of several small wires twisted together, providing

flexibility for applications like portable cords and flexible cables.




Why is proper conductor sizing important in electrical installations?


✔✔ Proper conductor sizing ensures that the wire can handle the expected current without

overheating or causing voltage drop.




What is a common use for armored cable?


✔✔ Armored cable protects conductors from physical damage and is often used in industrial or

outdoor installations.




What is the difference between solid and stranded conductors?


✔✔ Solid conductors are made of a single piece of metal, while stranded conductors consist of

multiple small wires twisted together for flexibility.

2

, What is the role of a conduit in electrical installations?


✔✔ A conduit provides a protective pathway for conductors, shielding them from physical

damage and environmental hazards.




What is the primary purpose of electrical conductors?


✔✔ Electrical conductors carry electrical current from one point to another in a circuit.




What is the function of insulation on electrical wires?


✔✔ Insulation prevents electrical current from escaping the conductor and protects against

electrical shocks and short circuits.




Why is copper commonly used as an electrical conductor?


✔✔ Copper has high conductivity, is durable, and resists corrosion, making it ideal for electrical

wiring.




What does the term "ampacity" refer to in electrical wiring?


✔✔ Ampacity is the maximum amount of current a conductor can safely carry without

overheating.

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