Choose the best answer to the question.

What tool should be soft and used only for rubbing out pencil marks or tracks on charts?

Choose the best answer to the question.

Which of the following words means a deep sounding fog warning in which the sound is produced by passage of air across holes in a rotating disc?

Choose the content of the Mariner’s Handbook, Chapter  9.

Choose the correct option.

When you are ordered to replace range of light to, 10M 32°36'-90S., 60°54'-18E, that means

Choose the appropriate variant.

Which of the following words means a small box with buttons on it, used to put information into a computer?

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If a channel buoy has a low number it means …

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When you are ordered to manage communications, that means

When you see a lighthouse that means

Choose

the factors that may cause collision in congested waters.

Which of the following words means a navigation

aid that warns mariners of dangerous shallows and perilous rocky coasts, and they help

guide vessels safely into and out of harbors?