Question 905Navigation General

70% to pass

Which of the following data layer categories is NOT displayed on ECDIS?

A ECDIS warnings and messages
B Ship hydrodynamic information
C Hydrographic Office data
D Notice to Mariners information
AI Explanation

The correct answer is B) Ship hydrodynamic information. ECDIS (Electronic Chart Display and Information System) displays various data layers as required by regulations, but ship hydrodynamic information is not one of them. ECDIS is primarily focused on displaying navigational data such as Hydrographic Office data, Notice to Mariners information, and ECDIS warnings and messages. Ship hydrodynamic information, which relates to the vessel's maneuvering characteristics, is not a required data layer for ECDIS and is not typically displayed on the system.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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