ARPA Final Exam – Latest 2025/2026 Update | Complete Questions and Answers (Graded A, Verified Elaborations)

ARPA Final Exam | Latest 2025/ 2026 Update
| Questions and Answers | GRADED A
(Verified Elaborations)
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Question:
Your ARPA has been tracking a target for 3 min. the radar did not receive an echo from the
target for 2 successive scans. What will happen?

Answer:
The ARPA will continue to track as if the RADAR was still receiving a target echo. The tracking
gate will become larger.




Question:
As confidence in a target predicted movement increases:

Answer:
The tracking gate size decreases.




Question:
An input error from your Doppler speed log:

Answer:
is the most common APRA error not involving display interpretation

, Question:
you notice the history dots on a tracked target getting farther apart. This may indicate that:

Answer:
the target has increased speed




Question:
in trail maneuver mode, the effect of the proposed maneuver is displayed:

Answer:
with the use of relative vectors




Question:
ARPA can preform tracking functions on AIS without radar information. (T/F)

Answer:
True




Question:
Locating a contact by the range and bearing can best be described as using:

Answer:
the polar coordinate system.




Question: