USCG USCG ROR
Set 14 • Question #156 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND While underway and in sight of another vessel crossing less than .5 mile away, you put your engines full speed astern. Which statement concerning whistle signals is TRUE?
A
You must sound three short blasts on the whistle.
✓ Correct Answer
B
You must sound one blast if backing to starboard.
C
You must sound whistle signals only if the vessels are meeting.
D
You need not sound any whistle signals.
USCG NMC Regulatory Explanation
COLREGS Rule 34(a) and 33 CFR 83.34(a) require any power-driven vessel operating astern propulsion while in sight of another vessel to sound three short blasts on the whistle, regardless of distance.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...