A.Radio direction finder
B.Satellite EPIRBs
C.MF/HF DSC
D.VHF homing device
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A.Read the display screen and/or printout
B.Silence the alarm
C.Listen for any follow up voice/telex transmission on the appropriate frequency
D.All of the above
A.In the Captain's office
B.In the sea cabin
C.At the GMDSS operating position
D.Anywhere on board the vessel
A.The safety of navigation or important meteorological warnings
B.The safety of a vessel or a person is in jeopardy
C.A vessel in need of immediate assistance
D.A coast station traffic list
A.ITU Publications
B.The manufacturers instruction manuals
C.Part 90 of the FCC Rules and Regulations
D.Code of Federal Regulations，Title 47，Part 80，Subpart W
A.VHF
B.SART
C.NAVTEX
D.LES
最新試題
International Navtex service means the coordinated broadcast and automatic reception on（）khz of maritime safety information by narrow-band direct-printing telegraphy using English language.
Radio communication（）for many years and helps to save tens of thousands of lives.
Before GMDSS, if the radio officer on board is serious ill,（）.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
The vessel has stayed in port for seven days because she needs（）.
COSPAS-SARSAT is intended to be used for（）.