Which ARPA data should you use in order to...

Question 1 / 2707066636ee928f7522a1c51919a

Question 1 of 2707066636ee928f7522a1c51919a

Which ARPA data should you use in order to determine if a close quarters situation will develop with a target vessel?

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Question 1 of 27070

Which ARPA data should you use in order to determine if a close quarters situation will develop with a target vessel?

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🔍 Key Concepts

• Closest Point of Approach (CPA) and what it represents • How ARPA predicts future positions of targets • Difference between general ARPA display information vs. specific risk-of-collision indicators

💭 Think About

• Ask yourself: Which of these options directly tells me about how near another vessel will come to my own vessel in the future? • Consider which data item is explicitly calculated by ARPA to assess risk of collision, not just to describe motion or environment. • Think about which piece of information combines both range and time into a prediction about the future situation.

✅ Before You Answer

• Identify which choice is specifically tied to risk of collision / close quarters assessment in ARPA manuals and training materials. • Eliminate any options that describe environmental conditions rather than target-vessel encounter geometry. • Confirm which ARPA output you would watch change over time on the screen to decide whether to take avoiding action.

Question 1 of 27070

Which ARPA data should you use in order to determine if a close quarters situation will develop with a target vessel?

Set and drift of the current

Initial range of acquisition

Predicted time of CPA

Relative track information

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