Vessels required to have an Automatic Radar...

Question 1 / 2707066636ee928f7522a1c51a64f

Question 1 of 2707066636ee928f7522a1c51a64f

Vessels required to have an Automatic Radar Plotting Aid must have a device to indicate the __________.

Question 1 of 27070

Vessels required to have an Automatic Radar Plotting Aid must have a device to indicate the __________.

🔍 Key Concepts

• Automatic Radar Plotting Aid (ARPA) performance and display requirements • Why ARPA needs accurate motion information to track targets • Difference between information about the ship’s motion vs. voyage planning data

💭 Think About

• Ask yourself: What basic own-ship information must ARPA know continuously in order to calculate and display other vessels’ relative and true motion? • Which option gives data that changes constantly and directly affects collision-avoidance calculations? • Which choices are related to voyage planning or external systems rather than real-time radar plotting?

✅ Before You Answer

• Verify which item is specifically tied to collision avoidance calculations rather than trip planning. • Check which data type is normally fed directly into ARPA from log or GPS systems for own-ship motion. • Eliminate any answer that is not an immediate, continuously updated input needed for plotting targets.

Question 1 of 27070

Vessels required to have an Automatic Radar Plotting Aid must have a device to indicate the __________.

speed of the vessel over the ground or through the water

distance to the next port

time of the next navigational satellite pass

None of the above