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USCG Exam PracticeSingle-screw maneuvering and prop walk

Under 33 CFR §164.11, which of the following is expressly prohibited when fixing a vessel's position underway on navigable waters of the United States?

  1. A. Using electronic navigational equipment as the sole means of fixing position
  2. Using buoys as the sole means of fixing positionCorrect
  3. C. Using geographic reference points to corroborate a fix
  4. D. Using hydrographic contours in conjunction with radar

Why B is correct

33 CFR §164.11(e) expressly states that buoys alone are not used to fix the vessel's position. The accompanying note explains that buoys are placed in approximate positions and may be displaced by currents, ice, or vessel collisions. All other listed methods are affirmatively required or permitted under §164.11(d).

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