Marine Electrical Systems USCG Question #629 (Set 21)

When testing a capacitor with an digital multimeter set up as an ohmmeter, what would be the indication on the display when testing an initially discharged capacitor in good condition?

Official USCG Answer & Rule Citation

Correct Answer: Option A — the display would immediately show very low resistance but gradually climb to 'OL'

An initially discharged capacitor acts as a temporary short circuit when first connected to an ohmmeter source. As the internal battery charges the capacitor's dielectric, current decreases, causing the resistance reading to climb progressively until reaching 'OL' (over-limit/infinite resistance).

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