Question 1 of 5
What is the primary function of a circuit breaker?
Circuit breakers are designed to protect circuits from overcurrents and short circuits by quickly disconnecting the power.
Question 2 of 5
Which component in a circuit breaker provides thermal protection against overloads?
The bimetallic strip bends when heated by excessive current, triggering the breaker to trip.
Question 3 of 5
Which protection mechanism responds to short-circuit conditions?
A high current creates a strong magnetic field in the coil, causing the breaker to trip instantly.
Question 4 of 5
What is the function of the operating lever on a circuit breaker?
The lever allows for manual control and provides a visual indication of the breaker's status (ON/OFF/Tripped).
Question 5 of 5
After a circuit breaker trips due to a fault, what action is generally required?
Once tripped, the circuit breaker requires manual resetting after the fault has been identified and resolved.
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