559. Under the IALA Buoyage System, which topmark shown in illustration D023NG below will be displayed on a safe watermark?

559. Under the IALA Buoyage System, which topmark shown in illustration D023NG below will be displayed on a safe watermark?

Comments (0)

There are no comments at the moment. If you found an error or think question is incorrect, tell everyone about it

Progress: 24% (23/94)?

Learning progress ?
551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575
23/57