What will cause the ARPA to emit a visual...

Question 1 / 2707066636ee928f7522a1c519290

Question 1 of 2707066636ee928f7522a1c519290

What will cause the ARPA to emit a visual alarm, audible alarm, or both?

Question 1 of 27070

What will cause the ARPA to emit a visual alarm, audible alarm, or both?

🔍 Key Concepts

• ARPA guard zones vs. CPA/TCPA alarms • Difference between acquired targets and initial detections • Typical conditions for collision risk alarms on ARPA

💭 Think About

• Think about when the ARPA is designed to warn the navigator about potential collision risk rather than just normal target behavior. • Ask yourself which options describe a sustained or confirmed condition versus a momentary or single-scan event. • Consider how the ARPA treats targets that are already being tracked compared to those that are only just detected.

✅ Before You Answer

• Identify which choices involve a tracked target with motion data versus a simple detection. • Check which conditions are tied to preset safety limits (like CPA/TCPA or guard zones). • Verify whether a single missed scan is normally enough to trigger a full alarm on most ARPA systems.

Question 1 of 27070

What will cause the ARPA to emit a visual alarm, audible alarm, or both?

An acquired target entering into a guard zone

A tracked target lost for one radar scan

A target being initially detected within a guard zone

A tracked target entering your preset CPA-TCPA limits

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