
Building Trades Electrical
Flashcard
•
Other
•
9th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
FLASHCARD QUESTION
Front
What is the standard voltage for residential electrical systems in the United States?
Back
120 volts
2.
FLASHCARD QUESTION
Front
What is the purpose of a ground fault circuit interrupter (GFCI) outlet?
Back
To quickly shut off power to prevent serious injury from an electrical shock caused by ground faults or current leakage.
3.
FLASHCARD QUESTION
Front
What is the difference between a series circuit and a parallel circuit?
Back
The main difference is how components are connected: series circuits have components connected in a single path, while parallel circuits have components connected in multiple paths.
4.
FLASHCARD QUESTION
Front
What is the function of a circuit breaker in an electrical system?
Back
The function of a circuit breaker in an electrical system is to protect the circuit from damage caused by excess current flow.
5.
FLASHCARD QUESTION
Front
What is the role of a junction box in electrical wiring?
Back
The role of a junction box in electrical wiring is to provide a safe enclosure for electrical connections and protect against electrical hazards.
6.
FLASHCARD QUESTION
Front
What is the purpose of a three-way switch in a lighting circuit?
Back
To control a single light fixture from two different locations
7.
FLASHCARD QUESTION
Front
What safety precautions should be taken when working with electrical wiring?
Back
Turn off power supply, use insulated tools, wear rubber gloves and safety goggles, avoid wet conditions, follow wiring diagrams
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