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USCG Exam Practice · Rule 6 — Safe Speed

Under the Inland Navigation Rules, at night, which factor related to safe speed must every vessel take into account?

  1. AThe range at which other vessels' lights can be detected by radar
  2. BThe number and location of vessels detected by radar
  3. CThe presence of background light such as from shore lights or from back scatter of her own lights✓ correct
  4. DThe effect on radar detection of the sea state and other sources of interference

Why C is correct

33 CFR §83.06(a)(iv) specifically lists, as a factor for all vessels, the presence at night of background light such as from shore lights or from back scatter of the vessel's own lights. The other options are radar-specific factors under §83.06(b).

Cited:33 CFR §83.06

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Under the Inland Navigation Rules, at night, which factor related t… — USCG Exam Practice · CaptainsGround