A.secured inside the wheelhouse
B.tested annually
C.tested monthly
D.secured in the emergency locker
您可能感興趣的試卷
你可能感興趣的試題
A.NAVTEX
B.HYDROLANT/HYDROPAC
C.NAVAREA
D.SAFESEA
A.in an inside passageway
B.in an approved bracket
C.so that it is accessible from the bridge of the vessel
D.so that it will float free if the vessel sinks
A.operates on both military and civilian aircraft distress frequencies
B.transmits both an alerting signal and a homing signal
C.must be the float free type and automatically activated
D.operates with a greater output of signal power
A.for precise navigation in coastal waters
B.by measuring the phase difference of the dots and dashes
C.as an aid to ocean navigation
D.if the vessel is fitted with a special Consol receiver
A.that follows the curvature of the earth
B.that can be picked up by SARSAT satellite
C.that activates an alarm on board nearby aircraft
D.to alert shore stations and then transmits a homing signal
最新試題
The vessel has stayed in port for seven days because she needs（）.
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.
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.
By using（）system a ship can send a distress message and know with certainty it will be received.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
（）will form the basis for distress alerting and safety calling.
（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.
Radio beacon can be activated（）in case of distress.
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.
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.