Marine Electrical Systems USCG Question #1322 (Set 45)

A carbon resistor has a resistance of 50 ohms, and a tolerance of 5 percent. What would be the respective colors indicated for bands 1, 2, 3 and 4 for this resistor as shown in figure "A" of the illustration? EL-0103

USCG Exam Illustration EL-0103
USCG Examination Diagram: Illustration EL-0103
Official USCG Answer & Rule Citation

Correct Answer: Option B — green, black, black, and gold.

Using the standard EIA color code: 5 (green) and 0 (black) are the significant figures. A multiplier of 1 (black) results in 50 ohms. A 5 percent tolerance is represented by the gold band. This follows standard industrial practices for identifying passive electronic components used in marine instrumentation.

100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.