Referring to the illustration pertaining to...

Question 1 / 2066636eed28f7522a1c51d9bf

Question 1 of 2066636eed28f7522a1c51d9bf

Referring to the illustration pertaining to the semi-automatic navigation light panel circuit, if the buzzer sounds and the masthead indicator light comes on, what statement is true concerning acknowledging and responding to the alarm while minimizing the danger to navigation? Illustration EL-0108

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Question 1 of 20

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🔍 Key Concepts

• Two-compartment running light fixture and what the transfer switch actually does in this circuit • How the trouble relay, buzzer, and indicator lights interact when one lamp in the running light fails • Navigation Rules requirement to keep the masthead light exhibited and avoid unnecessarily darkening all running lights

💭 Think About

• Trace the power path from the supply bus, through the transfer switch, to each of the two lamps. What happens to the circuit — and the relay coil — if one lamp burns out and you move the transfer switch to the other position? • Compare what each possible action in the choices does to (1) the alarm circuit and (2) whether any masthead light is actually lit. Which option restores a working masthead light the fastest while also stopping the alarm? • If you turn OFF either the masthead line section or the master section, what does that do to ALL navigation lights and to the alarm? Is that consistent with minimizing danger to navigation?

✅ Before You Answer

• Identify which switch position in the transfer switch with OFF position will feed the other lamp in the two-compartment running light. • Determine which device (master switch vs. line transfer switch) controls all lights versus just the one masthead running light circuit. • Confirm that the correct response both restores illumination to a masthead light and causes the trouble relay to drop or reset, which in turn silences the buzzer.

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Question 1 of 20

The buzzer is immediately silenced by turning the masthead transfer switch in the line section off. The masthead light can only be illuminated by replacing the burned-out bulb.

The buzzer is immediately silenced by turning the masthead transfer switch in the line section to the secondary lamp position. The masthead light will then immediately illuminate.

The buzzer is immediately silenced by turning the master switch in the master section off. The masthead light can only be illuminated by replacing the burned-out bulb.

Question 1 / 2066636eed28f7522a1c51d9bf

Question 1 of 2066636eed28f7522a1c51d9bf

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Question 1 of 20

66636eed28f7522a1c51d9bf

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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