In the lighting distribution circuit shown...

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Question 1 of 2066636eed28f7522a1c51d6ff

In the lighting distribution circuit shown in the illustrated lighting panel L110 of the illustration, if all circuit breakers are closed and due to a problem with the relevant feeder circuit breaker, there is a loss of power on the incoming phase A, which of the following statements is true? Illustration EL-0013

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Question 1 of 20

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🔍 Key Concepts

• How the AB, BC, CA markings in the center column relate to phases A, B, and C feeding each pair of breakers • Which individual branch circuits (by description) are connected to phase A versus only B and C • Effect of losing one incoming phase in a three‑phase lighting panel with all breakers closed

💭 Think About

• From the panel schedule, list every circuit that is on phase A; which loads (by description) do those circuits serve? • Compare that list with each answer choice: which choice correctly describes ONLY the circuits that would actually go dead if phase A is lost? • Pay attention to pairs like AB, BC, CA: if a pair is BC, does a loss of phase A affect those circuits at all?

✅ Before You Answer

• Identify, for each row, exactly which side breaker is on phase A and which is on the other phase in the pair (AB, BC, CA). • Verify whether the laundry receptacle circuit uses phase A or only B and C. • Verify whether each of the 01 deck, port and starboard accommodation and passageway lighting circuits includes phase A or not before choosing.

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