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USCG Exam Practice · Rule 32 — Sound Signal Definitions

Under the Inland Navigation Rules, a 'prolonged blast' is defined as a blast of what duration?

  1. AAbout 1 second
  2. BAbout 2 to 3 seconds
  3. CFrom 4 to 6 seconds✓ correct
  4. DAbout 8 to 10 seconds

Why C is correct

33 CFR §83.32(c) defines a prolonged blast as a blast of from 4 to 6 seconds' duration. A short blast is about 1 second per §83.32(b).

Cited:33 CFR §83.32

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