Question

Remember that on an ECDIS, you cannot set the _____ ______ but can reset the other depths.

a) Safety depth
b) Alarm depth
c) Limit depth
d) Contour depth

Answer 1

The answer to the question is 'Safety depth.' This cannot be set by the user on an ECDIS, as it is preset for navigational safety, but other depths like alarm, limit, and contour depths can be modified as needed.

Step-by-step explanation:

The correct answer is a) Safety depth. On an Electronic Chart Display and Information System (ECDIS), the safety depth is a predefined value that users cannot modify. This is because it is crucial for the safety of navigation. Whereas, users can manipulate the other types of depths like the alarm, limit, and contour depths according to the specific navigational circumstances and vessel draft. The ECDIS uses the safety depth to generate alarms and alerts when the vessel is nearing shallow waters or other hazards, ensuring safe navigation for the vessel.