A.all fishing vessels over 39 feet in length
B.sail-propelled fishing vessels
C.all fishing vessels of less than 200 GT
D.wooden hull fishing vessels with a poor radar echo
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A.in dense fog
B.in boisterous weather
C.in the open sea
D.in rivers
A.incorrect image
B.distinctive image
C.pictorial image
D.pictographic image
A.with
B.to
C.for
D.of
A.should not be made
B.are not to be taken
C.should be taken
D.shall be made
A.used
B.available
C.in use
D.can be used
最新試題
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?（）.
The development of（）led to the fully automatic ARPA systems installed on commercial ships.
Radar reflectors are required for（）.
What provides little or no indication that a vessel is dragging anchor? （）
You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced? （）
Which statement is true concerning a vessel equipped with operational radar?（）.
What will cause the ARPA to emit a visual alarm，audible alarm，or both?（）
Although manual plotting for CPA works well，the workload can become overwhelming when confronted with（）.
When using the radar for navigating（）.
You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）