Full access allows:
- Solve all tests online without limits;
- Remove all advertisements on website;
- Adding questions to favorite list;
- Save learning progress;
- Save results of practice exams;
- Watching all wrong answered questions.
13. When approaching a lock and at a distance of not more than a mile, vessels desiring a single lockage shall sound which signal?
Vessels requesting a single lockage within one mile of a lock must sound one long blast followed by one short blast, as per Corps of Engineers regulations.
Comments (0)
There are no comments at the moment. If you found an error or think question is incorrect, tell everyone about it
Only signed in users can write comments
Signin