Engine : Electricity - 101/1386
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| When would be the safest time to close the ship's main switchboard "shore power" circuit breaker? |
| A) at any time in a shipyard |
| B) when the ship's generators have been disconnected from the main bus |
| C) only after the ship's generators have been directly paralleled to those on shore |
| D) if a quick disconnect coupling is used |
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