COMPETENCE 3 – Use of Radar and ARPA for the Safety of Navigation
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#1. What will cause the Electronic Plotting Aid (EPA) to emit a visual alarm, audible alarm, or both?
Incorrect!
#2. The radar control used to reduce sea return at close ranges is the:
Incorrect!
#3. Vessel required to have an Automatic Radar Plotting Aid must have a device to indicate the:
Incorrect!
#4. In order to insure that the racon signal is visible on your 3 cm radar, the:
Incorrect!
#5. You are running parallel to the coast and take a running fix using bearings of the same object. If you are making less speed than used for the running fix, in relation to the position indicated by the fix, you will be:
Incorrect!
#6. What are the IMO requirements regarding separation of Radar and ARPA information?
Incorrect!
#7. A radar contact will remain stationary on a relative motion radar display only when it is:
Incorrect!
#8. When using an ARPA, what should you consider in order to evaluate the information displayed?
Incorrect!
#9. Which Electronic Plotting Aid (EPA) data should you use in order to determine if a close quarters situation will develop with a target vessel?
Incorrect!
#10. Vessels required to have an ARPA must have a device to indicate the:
Incorrect!
#11. What is the approximate wave length of an X Band Radar operating on a frequency of approximately 9500 MHz?
Incorrect!
#12. What is TRUE of the history display of a target's past positions on an ARPA?
Incorrect!
#13. When using the radar for navigating:
Incorrect!
#14. With regards to ARPA, what is the IMO requirement to acquisition?
Incorrect!
#15. Your radar indicates a target; however, there is no visible object at the point indicated. A large mountain, approximately 50 miles away on the same bearing as the target, is breaking the horizon. You should suspect the radar target is caused by:
Incorrect!
There are 15 questions for the actual examination for Competence 3 for OIC-NW with a passing rate of 70%. This means that you are only allowed to make 4 mistakes.
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