Marine Electrical Systems USCG Question #620 (Set 21)

Periodic testing using a special camera may be performed to detect potentially dangerous loose or corroded bus bar and controller connections. What is the name of this testing technology?

Official USCG Answer & Rule Citation

Correct Answer: Option C — heat sensitive thermography

Heat-sensitive thermography utilizes infrared cameras to detect abnormal thermal signatures caused by high resistance from loose or corroded electrical connections. This preventive maintenance technology is widely deployed across marine switchboards to avert catastrophic electrical fires.

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