Question 727Navigation General70% to pass
You are radar scanning for a buoy fitted with a racon. In illustration D017NG below, which radar screen represents the presentation you should expect on the PPI?
AI Explanation
The correct answer is B.
The illustration D017NG shows a buoy fitted with a racon (radar beacon). When a racon is detected by the radar, it will produce a distinct "dash" or "bloom" on the radar display, as shown in option B. This is the expected presentation on the PPI (Plan Position Indicator) when radar scanning for a buoy with a racon.
The other options do not accurately represent the radar presentation of a racon-equipped buoy. Option A shows a simple target echo, option C depicts a more complex radar image, and option D does not appear to show a racon indication at all.
Related Questions
#725 From which type of cloud can a tornado or waterspout develop? #726 The wind speed and direction observed from a moving vessel is known as _______________.#728 When using an ARPA, what should you consider in order to evaluate the information displayed? #729 How many characters does the short text messaging feature of the automatic identification system (AIS) allows for? #730 Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. The sky is overcast, and the anemometer indicates that the apparent wind is from 144° relative at 8 knots. You are on course 162°T at 15 knots. How should you encode group Nddff?