Ace the West Virginia Barber Written Exam 2025 – Shape Up for Success!

Question: 1 / 400

What is the switch that opens a circuit automatically when the current exceeds a certain value?

Circuit break

A circuit breaker is designed to open a circuit automatically when the current exceeds a certain value to prevent overloading and potential damage. Circuit breakers are crucial safety devices in electrical systems and help protect against short circuits, overcurrent, and other electrical faults by interrupting the flow of electricity when needed.

GFI (Ground Fault Interrupters) are designed to protect against electric shock and are typically used in areas where water is present, such as bathrooms or kitchens. Rheostats are variable resistors used to control the current flow in a circuit, and volts are units of measurement for electrical potential.

Get further explanation with Examzify DeepDiveBeta

GFI (Ground Fault Interrupters)

Rheostat

Volt

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy