Oklahoma Electrical Practice Exam

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Prepare for the Oklahoma Electrical Exam. Use flashcards and multiple choice questions, each accompanied by explanations and strategies. Be exam-ready!

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What is the maximum cord and plug connected load for a 15 amp duplex receptacle on a general purpose branch circuit?

10 amps
12 amps
15 amps
18 amps

The correct answer is: 12 amps

The correct answer is that the maximum cord and plug connected load for a 15 amp duplex receptacle on a general-purpose branch circuit is 12 amps. This limit is set to ensure safety and account for the continuous load rating required by the National Electrical Code (NEC). Generally, the NEC stipulates that a continuous load should not exceed 80% of the branch circuit's rating. For a 15 amp circuit, 80% equates to 12 amps. This precaution helps prevent overheating and potential fire hazards, ensuring that the electrical system operates safely under normal conditions. Understanding this limit is crucial for both compliance with electrical codes and for promoting safety in residential and commercial wiring. It is essential for electrical professionals to adhere to these limitations to provide safe and reliable electrical installations.