USCG USCG ROR
Set 6 • Question #376 of 475
Launch Interactive Practice Room BOTH INTERNATIONAL & INLAND The duration of a prolonged blast of the whistle is __________.
A
2 to 4 seconds
B
4 to 6 seconds
✓ Correct Answer
C
6 to 8 seconds
D
8 to 10 seconds
USCG NMC Regulatory Explanation
Under Inland Navigation Rules, for the condition where 'The duration of a prolonged blast of the whistle is', the correct requirement is: '4 to 6 seconds'. This standard ensures clear navigational intent and collision avoidance.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...