A.double frequencies
B.single frequency
C.dedicated frequency
D.multiple frequencies
您可能感興趣的試卷
你可能感興趣的試題
A.Inmarsat SES
B.VHF/DSC or MF/DSC
C.SART and VHF/DSC
D.Satellite EPIRB and VHF/DSC
A.indicate the ship in distress that the alert has been received
B.alert ships in the area of a distress incident that a distress has occurred
C.inform other coast station of distress incident
D.repeat the distress alert in 5 minutes
A.component
B.supportable
C.combined
D.complimentary
A.local-mode coverage
B.SAR operations
C.data process
D.continuous broadcast
A.Inmarsat-A
B.Inmarsat-C
C.Inmarsat-B
D.Inmarsat-M
最新試題
Radio beacon can be activated()in case of distress.
For COSPAS-SARSAT system,()usually transmit initial COSPAS-SARSAT alert.
The frequency()the safety message will be transmitted shall be included in DSC safety call.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous()alert.
Particular care should be()in selecting CESs in areas where Ocean Regions overlap.
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with()which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
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.
The vessel has stayed in port for seven days because she needs().
Every lifeboat which is fitted with a fixed two-way()radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
Every ship constructed on or after()shall comply with all the applicable requirements of this chapter.