GUIDE QUESTIONNAIRES for seafarers [2]

Posted by Annalou Mercado Posted on December 20, 2024

Welcome to your GUIDE QUESTIONNAIRES for seafarers [2].

1. 
What is called as the database resulting from (1) the transformation of the electronic navigational chart (ENC) by ECDIS for appropriate use, (2) the updates to the ENC by appropriate means, and (3) the additional data added by the mariner?

2. 
What is provided in the highest level of commercial navigational accuracy?

3. 
What is the geographic longitude of a body whose GHA is 215°15'?

4. 
What is the graphic record produced by the recording fathometer?

5. 
What is the typical nominal operating range of automatic identification systems (AIS) at sea?

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