Онлайн-тестирование: Test about Automatic Radar Plotting Aid (CBT)

Does current and drift affect the CPA/TCPA calculations on a true motion, true vector presentation?

Does incorrect speed input affect the true vectors on a ARPA display?

How can the true course and speed of a target be found when the display is showing relative vectors?

How can true vectors be easily identified as the vectors on display?

If the input gyro course is in error and fed to the ARPA, what can be expected?

Ship A is navigating in an area of restricted visibility and has detected, by radar alone, a crossing ship B, on her port bow. Which ship is the “Stand-On” vessel?

The plotting process can be divided into four separate operations. Which?

To which condition of visibility does Rule no. 5 Lookout apply?

What do the sides in the relative plotting triangle represent?

What does manual acquisition mean?

What does the lost target alarm tell you?

What does the target ship’s aspect mean?

What influence does an error in speed and/or gyro input have on the calculated CPA and TCPA?

What information is immediately apparent from the “relative plot” of another vessel?

What information is immediately apparent from the “true plot” of another vessel?

What is the correct speed input to an ARPA, used for traffic surveillance?

What is the meaning of this symbol?

What is the purpose of a Guard ring on an ARPA?

What is the purpose of digitising the radar echoes?

What is the result if there is no heading input to the radar?

What is the result of “Target Swop”?

Which ARPA presentation provides the information “closest to what you see through the bridge windows”?

Which sensor input is required for the ARPA to be able to calculate and display true vectors?

Why at different times is there a change in the size of the tracking gate?

You have radars installed on your ship, are you required to use them?