A.easy access to its storage compartment
B.replacement of the battery without exposure to the weather
C.it to float free if the vessel sinks
D.it to remain attached to the vessel
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A.all required documents and publications may have to be produced
B.licensed GMDSS radio operators may be required to demonstrate equipment competencies
C.all required equipment must be fully operational
D.All of the above
A.manually activated and operate on maritime (VHF) channels
B.automatically activated and operate on maritime (VHF) channels
C.manually operated and detected by satellite
D.automatically operated and detected by satellite
A.self-propelled，inspected vessels
B.towing vessels
C.recreational vessels
D.uninspected passenger vessels
A.orbiting satellites in space
B.commercial radio stations
C.private，commercial，and military aircraft
D.ordinary radio stations
A.One approved Class A EPIRB
B.Two approved Class A EPIRBs
C.One approved Class B EPIRBs
D.Two approved Class B EPIRBs
最新試題
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
On-scene communications will normally take place between（）.
Please use（）for（）.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
COSPAS-SARSAT is intended to be used for（）.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
All coast radio stations（）DSC installed for VHF and HF.
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.