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Which device provides the main means in the GMDSS for locating ships in distress or their survival craft ________．
A.Radio direction finder
B.Satellite EPIRBs
C.MF/HF DSC
D.VHF homing device
参考答案
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Which frequencies and modes are allocated for distress alerting in GMDSS ________．A.406 MHz via EPIRBB.1626.5-1645.5 via INMARSATC.Channel 70 DSC plus six（6）MF/HF DSC frequenciesD.All of the above
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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 log．C.Both of the aboveD.None of the above
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单选题With the help of GMDSS（）can be alerted to a distress incident as soon as possible.A
all ships in a large sea areaB
only the sea authorities ashoreC
the SAR units ashore and at seaD
the port radios and the coast stations
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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
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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
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单选题Which statement concerning reserve sources of energy for GMDSS is FALSE（）.A
While the ship is at sea，there must be available at all times a supply of electrical energy sufficient to operate the radio installations and to charge any batteries used as part of a reserve source of energyB
Both the VHF and MF/HF installations must be simultaneously suppliedC
A means of ensuring a continuous supply of electrical power must be provided to all GMDSS equipment that could be affected by an interruption in powerD
If a UPS or equivalent is used to supply power to the ship's GPS receiver or other source of positional information，a means must be provided to ensure the continuous supply of the information in the event of a failure to the ship's main or emergency source of power
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Firewall user authentication provides another layer of security in a network.B
Firewall user authentication provides a means for accessing a JUNOS Software-based security device.C
Firewall user authentication enables session-based forwarding.D
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单选题Bridge-to-bridge communication means（）communications between ships from the position from which the ships are normally navigated.A
distressB
urgentC
safetyD
general
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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
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单选题Which action should be taken on receipt of a GMDSS distress alert（）.A
Read the display screen and/or printoutB
Silence the alarmC
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单选题According to the basic concept of GMDSS,（）can be rapidly alerted to a distress incident.A
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all ships in a very large sea areaC
the nearest coast stations and port radiosD
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单选题What is the primary purpose for Digital Selective Calling (DSC)?（）A
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DSC provides low-cost，routine communications for the vessel operatorC
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单选题Which system may be useful for messages，such as local storm warnings or a shore-to-ship distress alert，for which it is inappropriate to alert all ships in the satellite coverage area?（）A
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EGCC
AMVERD
DSC
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单选题Distress traffic（）all messages relating to the immediate assistance required by the ship in distress, including search and rescue communications and signals for locating.A
consists ofB
is consisted ofC
consisted ofD
are consisted of
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单选题When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）in a coordinated search and rescue operation with the minimum delay.A
assistB
send a rescue vesselC
search the distress areaD
reach the distress position at once
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单选题What following is not among the functions of SOLAS ships?（）A
receive shore-to-ship distress alertingB
transmit ship-to-shore distress alertingC
receive message for public correspondenceD
transmit and receive locating signals
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单选题Which device provides the main means in the GMDSS for locating ships in distress or their survival craft（）.A
Radio direction finderB
Satellite EPIRBsC
MF/HF DSCD
VHF homing device
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单选题When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）soonest.A
reach the distress areaB
conduct a sector searchC
send rescue vesselsD
assist coordinately in SAR operation
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单选题When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will（）in a coordinated search and rescue operation with the minimum delay.A
assistB
send a rescueC
search the distress areaD
Reach the distress position at once
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单选题Several merchant ships are arriving at the scene of a distress incident. One of the them must assume the duties of the Coordinator Surface Search (CSS). Which of the following statements is TRUE?（）.A
CSS duties are always assumed by passenger vessels，dry cargo vessels，or tankers in that order of precedenceB
The CSS must be established by mutual agreement between the ships concernedC
A tanker should never be assigned CSS duties unless only tankers are presentD
The first vessel to arrive at the distress incident is designated as the CSS
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The SurfControl server in the cloud provides the SRX device with the category of the URL as well as the reputation of the URL.B
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The SurfControl server in the cloud provides the SRX device with only the reputation of the URL.D
The SurfControl server in the cloud provides the SRX device with a decision to permit or deny the URL.
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单选题Which statement concerning locating signals in the GMDSS is FALSE（）.A
Locating signals are transmitted by survival craft VHF transceiversB
Locating signals are transmitted by SARTsC
Locating signals are intended to facilitate the finding of a distressed vessel or its survivorsD
Locating signals are not transmitted by autoalarm generators
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单选题Which statement is generally correct regarding the maintenance requirements for ships under GMDSS（）.A
Redundancy of functions of certain equipment will partially meet this requirementB
On-board maintenance provided by a person holding a GMDSS maintainer's license will partially meet the requirementsC
Shoreside maintenance and scheduled tests and inspections will partially meet this requirementD
All of the above
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