A.submarine EPIRB
B.safety EPIRB
C.ship EPIRB
D.survival craft EPIRB
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A.is primarily designed for vessels operating up to 50 miles offshore or on foreign waters
B.transmits a signal that can be detected by satellite
C.must be manually activated
D.operates in the medium and low frequency bands
A.approved by the CCS
B.designed for float free，automatic activation
C.operated on 121.5/243 MHz
D.operated manually
A.a safety line attached to a man working over the side
B.used to measure water depth
C.used to slow the headway of a barge
D.used to measure the overhead height of a bridge
A.What
B.How
C.Which
D.When
A.How
B.What
C.Why
D.How about
最新試題
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
Radio beacon can be activated（）in case of distress.
Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
We consider（）send a helicopter with medical facilities to the distress area.
COSPAS-SARSAT is intended to be used for（）.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
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.
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.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.