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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?

  1. AUsing electronic navigational equipment as the sole positioning method
  2. BUsing geographic reference points to corroborate a GPS fix
  3. CUsing buoys as the sole means of fixing the vessel's position✓ correct
  4. DUsing hydrographic contours in conjunction with radar

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 position fixed by other means, but cannot serve as the sole basis for a fix.

Cited:33 CFR §164.11

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Under 33 CFR §164.11, which of the following is expressly prohibite… — USCG Exam Practice · CaptainsGround