Question 454Electricity & Electronics - QMED

70% to pass

As shown in the illustrated one-line diagram of a two-tiered emergency power system for a passenger ship, what statement is true? Illustration EL-0166

Diagram for USCG Electrical QMED: As shown in the illustrated one-line diagram of a two-tiered emergency power...

AOn a restoration of normal ship's power, the final and temporary emergency loads power source is from the main switchboard.

BOn a restoration of normal ship's power, the temporary emergency loads power source is battery (from AC/DC UPS "A"), whereas the final emergency loads power source is from the main switchboard.

COn a restoration of normal ship's power, the final emergency loads power source is battery (from AC/DC UPS "B"), whereas the temporary emergency loads power source is from the main switchboard.

DOn a restoration of normal ship's power, the final emergency loads power source is from the main switchboard, whereas the temporary emergency loads power source is battery (from AC/DC UPS "B").

AI Explanation

The correct answer is A) On a restoration of normal ship's power, the final and temporary emergency loads power source is from the main switchboard. This is correct because the one-line diagram shows that the final and temporary emergency loads are both connected to the main switchboard. When normal ship's power is restored, the main switchboard would be the source of power for both the final and temporary emergency loads, as indicated in the diagram. The other options are incorrect because they do not accurately reflect the power sources shown in the one-line diagram for the restoration of normal ship's power. The diagram clearly shows the main switchboard as the source for both the final and temporary emergency loads.

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