Question 163Electricity & Electronics - 1st Asst/Chief
70% to passUnder what circumstance would a hand-held portable phase sequence indicator be used should the main switchboard mounted fixed phase sequence indicator be inoperative?
Apreparing to make the shore power connection
Binstalling a new synchroscope
Creplacing a defective solenoid
Dparalleling alternators
AI Explanation
The correct answer is A) preparing to make the shore power connection. A hand-held portable phase sequence indicator would be used in this situation to verify the phase sequence of the shore power connection before connecting it to the vessel's electrical system. This is important to ensure the phases are properly aligned, which is necessary for the safe and proper operation of the vessel's electrical equipment. The other answer choices (B, C, and D) do not directly relate to the specific scenario described in the question.
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