ARPA stands for what?

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Multiple Choice

ARPA stands for what?

ARPA stands for Automatic Radar Plotting Aid. This name reflects what the system does: it automatically plots target ships on the radar screen, tracks their moves, and computes predicted positions including time to the closest point of approach and related vectors. This automatic plotting and prediction greatly aids the navigator in collision avoidance, especially when multiple targets are present. The other options don’t match the established maritime terminology. They sound plausible but aren’t the official name of this radar feature, and they don’t convey the automatic plotting aspect that ARPA provides.

ARPA stands for Automatic Radar Plotting Aid. This name reflects what the system does: it automatically plots target ships on the radar screen, tracks their moves, and computes predicted positions including time to the closest point of approach and related vectors. This automatic plotting and prediction greatly aids the navigator in collision avoidance, especially when multiple targets are present.

The other options don’t match the established maritime terminology. They sound plausible but aren’t the official name of this radar feature, and they don’t convey the automatic plotting aspect that ARPA provides.

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