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Electrical 2 Module 2 Test Questions and Answers | Latest Version | 2024/2025 | Correct & Verified £7.49
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Electrical 2 Module 2 Test Questions and Answers | Latest Version | 2024/2025 | Correct & Verified
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Electrical 2 Module 2 Test Questions and Answers | Latest Version | 2024/2025 | Correct & Verified What should you do before working on any electrical system? Ensure that the power is turned off and the system is properly locked out and tagged out to prevent accidental energization. Wha...

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  • December 14, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • electrical 2 module 2 test questions and answers

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  • Electrical 2 Module 2
  • Electrical 2 Module 2

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Electrical 2 Module 2 Test Questions and
Answers | Latest Version | 2024/2025 |
Correct & Verified
What should you do before working on any electrical system?


✔✔Ensure that the power is turned off and the system is properly locked out and tagged out to

prevent accidental energization.




What is the function of a circuit breaker in an electrical system?


✔✔A circuit breaker automatically shuts off electrical power when it detects an overload or short

circuit, protecting the system from damage.




Why is it important to use the correct wire size for electrical circuits?


✔✔Using the correct wire size prevents overheating and reduces the risk of electrical fires due to

excessive current.




How do you determine the correct wire gauge for a circuit?


✔✔The wire gauge is determined by the current rating of the circuit, the length of the wire, and

the type of installation.




1

, What is the purpose of a fuse in an electrical circuit?


✔✔A fuse provides overcurrent protection by blowing if the current exceeds a safe level,

preventing damage to the circuit.




What is the difference between AC and DC current?


✔✔AC (Alternating Current) changes direction periodically, while DC (Direct Current) flows in

one direction only.




What is the purpose of a junction box in electrical wiring?


✔✔A junction box protects electrical connections, prevents electrical shock, and provides a safe

area for wire splicing or connections.




Why should electrical connections be properly tightened?


✔✔Loose connections can cause overheating, arcing, and potential fire hazards. Properly

tightened connections ensure safe and reliable operation.




What is the standard voltage for most residential electrical systems in the United States?


✔✔120 volts for standard outlets and 240 volts for large appliances like dryers and ovens.




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