Marine Electrical Systems USCG Question #77 (Set 3)

What statement is true concerning the electrical diagram shown in figure "B" of the illustration? Illustration EL-0019

USCG Exam Illustration EL-0019
USCG Examination Diagram: Illustration EL-0019
Official USCG Answer & Rule Citation

Correct Answer: Option A — 'R1', 'R2', and 'R3' are connected in parallel.

Figure B displays multiple components connected across common nodes, establishing identical potential differences across each branch. Per IEEE 45 and standard electrical diagram analysis, this parallel configuration ensures branch independence and independent current paths.

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