USCG Exam Practice · GPS and electronic navigation
According to Bowditch Ch. 1 §101, which navigation method serves as the principal real-time reference on modern voyages?
- ADead reckoning
- BPiloting
- CCelestial navigation
- DElectronic navigation✓ correct
Why D is correct
Bowditch Ch. 1 §101 states that modern voyages combine all four primary navigation methods — dead reckoning, piloting, celestial, and electronic — with electronic navigation as the principal real-time reference and the others serving as cross-checks.
Cited:Bowditch Ch. 1 §101
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