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ICC TEST QUESTIONS AND ANSWERS | LATEST VERSION | 2024/2025 | GRADED A+
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ICC TEST QUESTIONS AND ANSWERS | LATEST VERSION | 2024/2025 | GRADED A+ What is the primary function of an electrical circuit breaker? The primary function of an electrical circuit breaker is to automatically interrupt the flow of electricity in a circuit when it detects an overload or sh...

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  • October 9, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • icc test questions and answers latest version

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  • ICC TST
  • ICC TST

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ICC TEST QUESTIONS AND ANSWERS |
LATEST VERSION | 2024/2025 | GRADED
A+
What is the primary function of an electrical circuit breaker?


✔✔ The primary function of an electrical circuit breaker is to automatically interrupt the flow of

electricity in a circuit when it detects an overload or short circuit, preventing damage and

hazards.




How does an electrical transformer work?


✔✔ An electrical transformer works by transferring electrical energy between two or more

circuits through electromagnetic induction, allowing voltage levels to be increased or decreased.




What is the purpose of grounding in electrical systems?


✔✔ Grounding provides a safe path for electricity to dissipate into the earth, protecting

equipment and preventing electrical shock hazards.




What does the term "short circuit" refer to in electrical systems?


✔✔ A short circuit refers to an unintended low-resistance connection between two points in a

circuit, which can lead to excessive current flow and potential damage.

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, How is electrical resistance measured, and what unit is used?


✔✔ Electrical resistance is measured in ohms (Ω) using an ohmmeter, indicating how much a

material opposes the flow of electric current.




What is the difference between alternating current (AC) and direct current (DC)?


✔✔ Alternating current (AC) periodically reverses direction, while direct current (DC) flows in a

single direction, providing different applications in electrical systems.




What safety precautions should be taken when working with electrical systems?


✔✔ Safety precautions include wearing appropriate personal protective equipment (PPE), de-

energizing circuits before working on them, and following lockout/tagout procedures.




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


✔✔ The National Electrical Code (NEC) sets the standard for safe electrical installation and

ensures that electrical systems are designed and maintained to minimize hazards.




How do fuses differ from circuit breakers in protecting electrical circuits?




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