On offshore drilling units, each storage battery for emergency lighting and power systems must be tested every six months under actual connected load for a period of at least __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — 2 hours
Title 46 CFR regulations for Mobile Offshore Drilling Units (MODUs) mandate that emergency lighting and power storage batteries undergo a full actual connected load test for at least two hours semi-annually to verify battery bank reliability.
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