Oklahoma Locksmith Practice Exam 2025 – Comprehensive All-in-One Guide to Exam Success!

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What is the primary purpose of a circuit breaker?

To measure current flow

To disconnect power in an overload situation

The primary purpose of a circuit breaker is to disconnect power in an overload situation. This device is designed to automatically interrupt the electrical current when it detects a fault, such as an overload or a short circuit, which can lead to dangerous conditions like overheating or electrical fires.

By interrupting the circuit, the breaker protects wiring and connected appliances from damage caused by excessive current flow. This safety feature is crucial in maintaining the integrity of an electrical system and ensuring the safety of individuals using electrical devices. Unlike other options, which may deal with monitoring or regulating electricity, the circuit breaker's fundamental role is focused specifically on safeguarding the electrical system by providing a means to cut off electrical flow during potential hazardous situations.

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To regulate voltage

To prevent short circuits

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