USCG Exam Practice · Estimated position from current set & drift
Under 33 CFR §164.11, which of the following is expressly prohibited when fixing a vessel's position underway?
- AUsing hydrographic contours as a reference
- BUsing electronic navigational equipment as the sole means of fixing position
- CUsing buoys as the sole means of fixing position✓ correct
- DUsing geographic reference points without a simultaneous radar bearing
Why C is correct
33 CFR §164.11(e) states that buoys alone are not to be used to fix the vessel's position. Buoys may corroborate a fix obtained by other means, but cannot serve as the sole basis for a position fix.
Cited:33 CFR §164.11
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