How long must GMDSS Radio Logs be retained by the licensee when they relate to a distress situation or disaster? （）

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• 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 frequency C . It is imposed by the Public Correspondence Station (PCS) controlling the distress communications on that frequency or channel D . It is imposed by the High Seas Service (HSS) controlling the distress communications on that frequency or channel

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• Given a bridge link 6 miles （9.7 km） long，which parameter on the Root Radio Interface page must be configured in order for IP traffic to pass？（）

  A . RTS B . distance（kilometers） C . concatenation D . CCA

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• How long must the records of tests and inspections of fire fighting equipment on board a ship be retained on board?（）

  A . 6 months B . 1 year C . 3 years D . Until the next inspection for certificatio

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• If a GMDSS radio operator initiates a DSC distress transmission but does not insert a message，what happens? （）

  A . The transmission is aborted and an alarm sounds to indicate this data must be provided by the operator B . The transmission is not initiated and "ERROR" is indicated on the display readout C . The transmission will be made with "default" information provided automatically D . The receiving station will poll the DSC unit of the vessel in distress to download the necessary informatio

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• Which statement concerning GMDSS Radio Operator requirements is FALSE（）.

  A . Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea B . Each compulsory vessel must carry at least two licensed Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well C . Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications D . While at sea，adjustments to，and the maintaining of，GMDSS equipment may be performed by the GMDSS Radio operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer

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• 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 frequency B . The operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was received C . The Operator should immediately set continuous watch on VHF channel 70 D . 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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• Which message categories cannot be disabled by the GMDSS radio operator（）.

  A . Navigational Warnings B . Meteorological Warnings C . Search and Rescue Information D . All of the above

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• How does a coast radio station communicating by HF radio normally identify itself?（）

  A . By its subscriber number B . By its call sign C . By its MMSI D . By its MID

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• The source of energy fitted in GMDSS complying vessels must be（）.

  A . the main source of energy B . emergency source of electrical power C . the reserve source of energy D . all of above

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• How long must the GMDSS radio log be retained on board?（）

  A . At least two years after the last entry B . At least one year after the last entry C . At least 90 days after the last entry D . At least 30 days after the last entry

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• The Emergency Position Indicating Radio beacon on a cargo vessel must be stowed（）.

  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 sink

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• Every ship must fitted with（）SART, and（）two-way VHF radio telephone.

  A . 1,2 B . 2,3 C . 2,1 D . 3,2

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• The radio waves used for radar are very short，only（）long.

  A . a few centimeters B . a few fathoms C . a few meters D . a few feet

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• Given a bridge link 6 miles （9.7 km） long，which parameter on the root radio interface page must be configured in order for ip traffic to pass？（）

  A . rts B . distance（kilometers） C . concatenation D . cca

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• All self-propelled vessels on an international voyage must be equipped with how many Emergency Position Indicating Radio beacons (EPIRB)? （）

  A . One approved Category 1 EPIRB B . Three approved Category 1 EPIRBs C . One approved Class B EPIRB D . Two approved Class B EPIRB

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• Which maintenance functions can a GMDSS Radio Operator perform（）.

  A . The Operator can make fine internal adjustments to the transmitter as long as the output power does not change by more than one percent B . The Operator is responsible for ensuring that INMARSAT antennas are free of built-up soot and clear of obstacles C . All levels of maintenance must be performed by a licensed GMDSS Radio Maintainer D . The Operator may install an EPROM in order to ensure that the equipment continues to operate within legal constraint

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• 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 reset B . 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 situation C . It will initiate the DSC distress alert and default information will automatically be transmitted D . 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 situatio

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• Where should the GMDSS radio log be kept on board ship（）.

  A . In the Captain's office B . In the sea cabin C . At the GMDSS operating position D . Anywhere on board the vessel

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• The GMDSS must combine all various subsystems, because（）.

  A . they all have different limitations with respect to coverage B . they all have different limitations in the technology they use C . different systems apply to different ships D . all of above

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• How long warning must be provided by the CO2 warning Mann before CO2 is discharged into a space （）.

  A . 5 seconds B . 10 seconds C . 15 seconds D . 20 second

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• The radio waves used for radar are very short ， only______long ．

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• 71. How many GMDSS radio operators are needed／required on board according to the provisions of the International Convention for the Safety of Life at Sea，1974？

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• 174. Which message categories cannot be disabled by the GMDSS radio operator _______.

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• How much would you______for repairing my radio？

  A．charge B．cost C．pay D．spend

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