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Distress signalsQuestion 286 of 352

A supplemental signal for air rescue is a piece of canvas. What color?

  1. White, with a red cross
  2. Green, with a yellow stripe
  3. Orange, with a black square and circle
  4. Black, with no markings
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Correct answer: Orange, with a black square and circle

Orange canvas with a black square and circle, or another symbol, can be seen from the air.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 87: Annex IV: Distress Signals, § 87.03 Supplemental signals

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Questions last reviewed: 18 October 2026