Marine Electrical Systems USCG Question #1154 (Set 39)

What should be performed as routine maintenance of lead acid batteries?

Official USCG Answer & Rule Citation

Correct Answer: Option B — keeping the terminals and connections clean and tight

IEEE 45 standards emphasize that routine maintenance must focus on terminal integrity. Keeping connections clean and tight prevents high-resistance joints, which cause voltage drops and overheating. Corrosion on terminals acts as an insulator, potentially leading to starting failures or charging system malfunctions during critical shipboard operations.

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