A.A decreasing reading on loran pair 9960-X
B.The bearing of Wolf Trap Light changing to the right
C.Increasing soundings
D.The bearing of Wolf Trap Light changing to the left
您可能感興趣的試卷
你可能感興趣的試題
A.It cannot be used in all parts of the world
B.There are 12 functioning GPS satellites at present
C.It may be suspended without warning
D.Two position lines are used to give a 2D fix
A.Pulse width
B.Pulse repetition frequency
C.Peak power
D.Target brightness
A.Radio communications allow the crane operator to disregard the use of hand signals
B.The crane operators and signalman must be familiar with the correct hand signals
C.The forward cranes can be operated from the bridge
D.The aft cranes can be operated from the aft steering station
A.AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position and other safety related information to similarly equipped vessels,aircraft and shore stations within the area
B.AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position and other safety related information to similarly equipped vessels,aircraft and shore stations within the area
C.AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position and other safety related information frequently to similarly equipped vessels,aircraft and shore stations within the area
D.AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position and other safety related information to similarly equipped vessels,aircraft and shore stations within the area
A.Radar
B.GPS
C.DF
D.Satellite Navigator
最新試題
The heading of a vessel is indicated by what part of the compass? ()
The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of().
The loran lines drawn on navigation charts represent().
Loran-C uses the multiple pulse system because().
You are about to go to sea and adjust the magnetic compass.To expedite the adjustment at sea,in what order should the following dockside adjustments be made().
What does not contribute to the commercial GPS receiver position error().
While you are at anchor,what will serve as a positive warning that you are drifting towards the wrecks located to the NW and SW of your 2215 position().
The operation of which aids to navigation may be suspended during war or national emergency().
The receiver uses()satellites to compute latitude,longitude,altitude,and velocity.
When navigating using DGPS(Differential Global Positioning System)you may expect your position to be accurate to within a radius of().