A.center bearings
B.tangent bearings
C.ranges
D.objects that are close aboard
您可能感興趣的試卷
你可能感興趣的試題
A.station the look-out in the wheelhouse to keep a continuous watch on the radar
B.secure the sounding of fog signals until a vessel closes within five miles
C.station a look-out as low down and far forward as possible
D.keep the radar on the shortest available range for early detection of approaching vessels
A.in the way
B.the way
C.by the way
D.through the path
A.An acquired target entering into a guard zone
B.A tracked target lost for one radar scan
C.A tracked target entering your preset CPA-TCPA limits
D.A target being initially detected within a guard zone
A.Increasing radar range to a fixed object ahead
B.Drift lead with the line leading perpendicular to the centerline
C.Vibrations felt by placing a hand on the cable
D.Changing bearings to distant fixed objects abeam
A.You should make an ample change to port for a vessel crossing on the starboard bow
B.You should maneuver in ample time if a close-quarters situation is developing
C.You should determine the course and speed of all radar contacts at six minute intervals
D.Long-range scanning will provide early warning of ALL other vessels within the radar's range
最新試題
Which general statement concerning radar is FALSE?（）.
What will cause the ARPA to emit a visual alarm，audible alarm，or both?（）
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?（）.
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? （）
The development of（）led to the fully automatic ARPA systems installed on commercial ships.
When you turn on the fast time constant (differentiator) control of a radar it will（）.
Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.
Your ARPA has been tracking a target and has generated the targets course and speed.The radar did not receive a target echo on its last two scans due to the weather.What should you expect under these circumstances（）.
When using a radar in a unstabilized mode，fixes are determined most easily from（）.