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单选题
Distress and safety communications following DSC calling will be performed by radiotelephony or（）.
A
NBDP
B
EGC receiver
C
NBDP or both
D
EGC receiver or both
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更多 “单选题Distress and safety communications following DSC calling will be performed by radiotelephony or（）.A NBDPB EGC receiverC NBDP or bothD EGC receiver or both” 相关考题
考题
DSC遇险呼叫时,它的格式符£¯类别是()。
A、Distress/distressB、allship/DistressC、Distress/ALL shipD、All ship/All ship
考题
Which statement pertaining to log keeping is TRUE ________．A.Entries relating to pre-voyage，pre-departure and daily tests are requiredB.Both A and CC.All distress，urgent and safety communications must be loggedD.Routine daily MF-HF and INMARSAT-C transmissions do not have to be logged
考题
What is meant by the term“radio silence”________．A.Stations not directly involved with the on-going distress communications may not transmit on the distress frequency or channelB.Stations remaining off the air to safeguard proprietary informationC.Two three-minute silent periods，at 15 and 45 minutes after the hour，that provide a transmitting“window”for distressed vessels to transmit distress alerts using J3ED.Communications on a distress frequency or channel is banned for 24 hours following the cessation of the distress traffic
考题
如果用DSC设备收妥确认遇险报警信息，在DSC上应选（）A、DISTRESS ACKNOWLEDGEB、URGENT CALLC、DISTRESS RELAYD、SAFETY CALL
考题
单选题If no distress acknowledgement is received（）a DSC distress call transmission, then the ship in distress may repeat the DSC distress call attempt after a delay of between 3.5 and 4.5 minutes from the beginning of the initial call.A
relevant toB
relate toC
in response toD
in relation to
考题
单选题On-scene communications will normally take place between（）.A
ship in distress and assisting unitsB
NCS and RCCC
RCCs and “on-scene commander” or “coordinator surface search”D
ship in distress and coast station
考题
单选题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 distressB
SAR authorities and the ship in distress and survival craftC
A ship station and any coast stationD
Ship stations and shore-based communication network
考题
单选题What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received? （）A
No action is necessary，as the DSC control unit will automatically switch to the NBDP follow-on communications frequencyB
The operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was receivedC
The Operator should immediately set continuous watch on VHF channel 70D
The Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received
考题
单选题DSC distress acknowledgements are normally transmitted by（）in respond to a receiver DSC distress call.A
Ship stationsB
Coast stationsC
NCSsD
NCC
考题
单选题If a ship station relays a DSC distress call to an appropriate coast station, it means that（）.A
the ship has received the DSC distress call on a HF frequencyB
the coast station concerned has not acknowledged it within 5 minutesC
the ship will take command of search and rescue in 5 minutesD
A and B
考题
单选题If a DSC distress relay is transmitted from coast station , it will（）.A
indicate the ship in distress that the alert has been receivedB
alert ships in the area of a distress incident that a distress has occurredC
inform other coast station of distress incidentD
repeat the distress alert in 5 minutes
考题
单选题It is required that ships proceeding at sea should keep continuous watch on（）.A
VHF channels 16 and 13B
Appropriate DSC distress and safety frequenciesC
INMARSAT TDM message channelD
VHF channel 70 and channel 8
考题
单选题The radiotelegraphy safety messages for condition indicating distress，urgency and safety，respectively，are（）.A
SOS，ZZZ，XXXB
SOS，UUU，SSSC
SOS，XXX，TTTD
SOS，TTT，UUU
考题
单选题Which statement is TRUE（）.A
GMDSS radio logs are required to contain entries pertaining to all incidents connected to radio communication service which appear to be of importance to the safety of life at seaB
All distress communications must be entered in the GMDSS radio logC
Both of the aboveD
None of the above
考题
单选题What is the primary purpose for Digital Selective Calling (DSC)?（）A
DSC provides reception of weather and navigational warnings plus search and rescue informationB
DSC provides low-cost，routine communications for the vessel operatorC
DSC is to be used for transmitting and receiving distress alerts to and from other ships or coast radio stations via radioD
This aids SAR authorities in tracking a vessel's position by satellite
考题
单选题（）is used for calling and replying,and for transmitting acknowleding and relaying distress alerts.A
NAVETEX receiverB
Search and Rescue TransponderC
Emergency Position Indicating Radio BeacomD
Digital selective calling
考题
单选题Which statement pertaining to log keeping is TRUE（）.A
Entries relating to pre-voyage，pre-departure and daily tests are requiredB
Both A and CC
All distress，urgent and safety communications must be loggedD
Routine daily MF-HF and INMARSAT-C transmissions do not have to be logged
考题
单选题How is “radio silence” imposed?（）A
By the On Scene Coordinator (OSC)B
By the Coast Earth Station (CES) controlling the distress communications on that frequencyC
It is imposed by the Public Correspondence Station (PCS) controlling the distress communications on that frequency or channelD
It is imposed by the High Seas Service (HSS) controlling the distress communications on that frequency or channel
考题
单选题Ship-to-ship distress alerting should be conducted by（）.A
Inmarsat SESB
VHF /DSC or MF/DSCC
SART and VHF/DSCD
Satellite EPIRB and VHF /DSC
考题
单选题It is required that ships proceeding at sea should keep continuous watch on（）.A
VHF channel16 and 13B
appropriate DSC distress and safety frequencyC
INMARSAT TDM message channelD
VHF channel 70 and channel 8
考题
单选题Is considered to be one of the detainable deficiencies under the STCW Convention（）.A
Absence, substantial deterioration or failure of proper operation of the cargo deck area fire protection on tankerB
Absence, non-compliance or serious deterioration of lights, shapes or sound signalC
Absence or failure of proper operation of the radio equipment for distress and safety communicationD
Absence in a watch of a person qualified to operate equipment essential to safe navigation, safety radio communications or the prevention of marine pollution
考题
单选题What is meant by the term “radio silence”?（）A
Stations not directly involved with the on-going distress communications may not transmit on the distress frequency or channelB
Stations remaining off the air to safeguard proprietary informationC
Two three-minute silent periods，at 15 and 45 minutes after the hour，that provide a transmitting window for distressed vessels to transmit distress alerts using J3ED
Communications on a distress frequency or channel is banned for 24 hours following the cessation of the distress traffic
考题
单选题In radiotelephone communications，the prefix PAN-PAN indicates that（）.A
a ship is threatened by grave and imminent danger and requests immediate assistanceB
a calling station has an urgent message about the safety of a personC
the message following the prefix will be about the safety of navigationD
the message following is a meteorological warning
考题
单选题What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert?（）A
It will abort the transmission and set off an audible alarm that must be manually resetB
It will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situationC
It will initiate the DSC distress alert and default information will automatically be transmittedD
It will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situation
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