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CD0050. ARPA Theory

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About this collection

The Seagull CBT bank is organised into modules covering safety, shipboard operations, maintenance and other topics. Original module names and codes are retained to help you find the topic you need.

“Seagull CBT — CD0050. ARPA Theory” contains 28 questions across 1 collection.

Learning

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Exam

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Sample questions and answers

These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.

What does manual acquisition mean?

One correct answer

  • The operator must select and acquire each target separately✓ Correct answer
  • The operator selects an area of interest and targets inside the area are acquired
  • The operator must repeatedly place the cursor on each target and press “acquire”
  • The operator selects the limits of CPA and TCPA and targets breaking these limits are automatically acquired
What is the meaning of this symbol?

One correct answer

  • The target has been manually acquired and is in acquisition state✓ Correct answer
  • The target has been automatically acquired and is in acquisition state
  • Dangerous target
  • Lost target
Which sensor input is required for the ARPA to be able to calculate and display true vectors?

One correct answer

  • Course and speed✓ Correct answer
  • None
  • Course
  • Speed
What do the sides in the relative plotting triangle represent?

One correct answer

  • Targets true course and speed - Own ship true course and speed - Targets relative course and speed✓ Correct answer
  • Targets true course - Own ship true course - Targets relative course
  • Targets true speed - Own ship true speed - Targets relative speed
  • Targets true course and speed - Own ship relative course and speed - Targets relative course and speed
What does the target ship's aspect mean?

One correct answer

  • The relative bearing of own ship measured at the target ship✓ Correct answer
  • The true bearing of target ship measured at own ship
  • The relative bearing of the target ship measured at own ship
  • The true bearing of own ship measured at the target ship

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Can I use my result as an official document?

No. This is independent practice. A result does not replace an examination, certificate or knowledge check by an authorised organisation.