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.
255. Which single-letter sound signal (s) may only be made in compliance with the Rules of the Road?
Morse signals E, D, and S duplicate whistle patterns defined by the Navigation Rules. Consequently, these signals can only be used when complying with those rules.
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