Question 31 CEL02 - Chief Engineer - Limited (Alt)

The Correct Answer is C ### Explanation for Option C (Correct) In diagrams illustrating the operational status of high-voltage circuit breakers (like those referenced in figures "E" and "F" of illustration EL-0167), the different positions (A, B, C, D) typically correlate to distinct mechanical or electrical states. Figure **C** represents the circuit breaker status indicator when the breaker is in the **open or tripped** position. This position signifies that the main contacts are separated, the circuit is de-energized through the breaker, and power flow is interrupted, usually indicated by a visual cue like a green color or an "O" (for "Open") in the status window. A tripped state is an automatic opening caused by a fault (e.g., overcurrent). ### Explanation for Other Options (Incorrect) * **A) A is incorrect:** Figure A typically represents the **Closed** or **Connected** position. In this state, the breaker contacts are engaged, and current is flowing through the circuit. This is often indicated by red color or an "I" (for "In" or "Closed"). * **B) B is incorrect:** Figure B often represents an indicator for a condition other than the immediate electrical status, such as the mechanism being **Spring Charged** (meaning the breaker is ready to close or trip rapidly), or potentially the **Test/Disconnected** position, depending on the specific model representation in the diagram. * **D) D is incorrect:** Figure D frequently represents the **Spring Discharged** position (not ready to operate) or may be used to show a specific operational status related to maintenance or racking, rather than the primary "Open" or "Closed" electrical state.