單項選擇題It is required that ships proceeding at sea should keep continuous watch on（）.

A.VHF channels 16 and 13
B.Appropriate DSC distress and safety frequencies
C.INMARSAT TDM message channel
D.VHF channel 70 and channel 8


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1.單項選擇題General radio communications in the global system are those between（）concerning the management and operation of the ships and may have impact on their safety.

A.SAR party and the ship in distress
B.SAR authorities and the ship in distress and survival craft
C.A ship station and any coast station
D.Ship stations and shore-based communication network

2.單項選擇題why do some stations keep silence?（）

A.Because they are not engaged in the distress traffic
B.they will affect the transmission of the distress traffic
C.The powers of these stations are very weak
D.They are not in charge of search and rescue

3.單項選擇題What channel is general communication used?（）

A.any appropriate channel except public communication
B.any appropriate channel except for public communications
C.any appropriate channel besides public communication
D.any appropriate channel beside public communication

4.單項選擇題What’s the advantage when using the satellites?（）

A.The message can be directed to the desired location
B.The message can follow the earth’s curvature
C.The quality of message can not be affected by climatic
D.The range of the message extend and the quality of reception is improved

5.單項選擇題Any ships fitted with SES can（）and（）through the satellite system when sending a distress alert.

A.enter the system / contact an RCC
B.access to INMARSAT / establish contact with a CES
C.have absolute priority to enter the system / make contact with a CES
D.enter the system gradually / wait for rescue

最新試題

The rescue coordination center may（）on stations which interfere with traffic.

題型：單項選擇題

We consider（）send a helicopter with medical facilities to the distress area.

題型：單項選擇題

Please use（）for（）.

題型：單項選擇題

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.

題型：單項選擇題

The priority of EGC messages is classified by（）.

題型：單項選擇題

The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.

題型：單項選擇題

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.

題型：單項選擇題

（）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.

題型：單項選擇題

In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.

題型：單項選擇題

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.

題型：單項選擇題