Engine: Electricity

1. A On a restoration of normal ship's power, the final and temporary emergency loads power source is from the main switchboard.
2. B On 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.
3. C On 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.
4. D On 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").

Tip: press A-D to answer