Which message categories cannot be disabled by the GMDSS radio operator ________．A.Navigational WarningsB.Meteorological WarningsC.Search and Rescue InformationD.All of the above
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
相关考题：
Proper GMDSS watchkeeping includes ______.A.understanding the GMDSS console’s normal operational indicatorsB.maintaining a proper GMDSS radio station logC.responding to and comprehending alarmsD.All of the above
What is the minimum requirement of a GMDSS operator?A.GMDSS operator licenseB.Third officer licenseC.General Radiotelephone Operator license and Radar EndorsementD.General Radiotelephone license or First or Second Class Radiotelegraph license with GMDSS Radio Officer’s endorsement
When the GMDSS Radio Operator on watch hears“SECURITE”spoken three times he can expect to receive a message concerning ______．A.The safety of navigation or important meteorological warningsB.The safety of a vessel or a person is in jeopardyC.A vessel in need of immediate assistanceD.A coast station traffic list
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
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 percentB.The Operator is responsible for ensuring that INMARSAT antennas are free of built-up soot and clear of obstaclesC.All levels of maintenance must be performed by a licensed GMDSS Radio MaintainerD.The Operator may install an EPROM in order to ensure that the equipment continues to operate within legal constraints
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 seaB.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 wellC.Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communicationsD.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
Which statement concerning satellite EPIRBs is TRUE ________．A.Once activated，these EPIRBs continuously send up a signal for use in identifying the vessel and for determining the position of the beaconB.The coded signal identifies the nature of the distress situationC.The coded signal only identifies the vessel's name and port of registryD.If the GMDSS Radio Operator does not program the EPIRB，it will transmit default information such as the follow-on communications frequency and mode
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
Which statement is TRUE ________．A.Key letters or abbreviations may not be used in GMDSS radio logbooks under any circumstanceB.Urgent communications do not need to be entered in the GMDSS radio logC.Both of the aboveD.None of the above
Which statement is false？（） A、 custom URL categories cannot contain IP addressesB、 custom URL categories cannot override predefined URL categoriesC、 custom URL categories can contain domain namesD、 custom URL categories can use regular expressions
Which statement is true regarding subqueries?（）A、The LIKE operator cannot be used with single-row subqueries B、The NOT IN operator is equivalent to IS NULL with single-row subqueries C、=ANY and =ALL operators have the same functionality in multiple-row subqueries D、The NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries
单选题What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received? （）ANo action is necessary，as the DSC control unit will automatically switch to the NBDP follow-on communications frequencyBThe operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was receivedCThe Operator should immediately set continuous watch on VHF channel 70DThe Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received
单选题Proper GMDSS watchkeeping includes（）.Aunderstanding the GMDSS console's normal operational indicatorsBmaintaining a proper GMDSS radio station logCresponding to and comprehending alarmsDAll of the above
单选题If a GMDSS radio operator initiates a DSC distress transmission but does not insert a message，what happens? （）AThe transmission is aborted and an alarm sounds to indicate this data must be provided by the operatorBThe transmission is not initiated and ERROR is indicated on the display readoutCThe transmission will be made with default information provided automaticallyDThe receiving station will poll the DSC unit of the vessel in distress to download the necessary information
单选题For GMDSS，which statement concerning a compulsory vessel is FALSE?（）AA conditional or partial exemption may be granted，in exceptional circumstances，for a single voyage outside the sea area for which the vessel is equippedBOnce a compulsory vessel's GMDSS station has been fitted and inspected，the station must be inspected only once every five yearsCAll passenger vessels and all cargo vessels that are 300 Gross Tons or larger must complyDCompulsory vessels must carry at least two licensed GMDSS Radio Operators
单选题Which statement is TRUE（）.AKey letters or abbreviations may not be used in GMDSS radio logbooks under any circumstanceBUrgent communications do not need to be entered in the GMDSS radio logCBoth of the aboveDNone of the above
单选题Which statement is TRUE（）.AGMDSS 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 seaBAll distress communications must be entered in the GMDSS radio logCBoth of the aboveDNone of the above
单选题Which statement is true regarding subqueries?（）AThe LIKE operator cannot be used with single-row subqueries BThe NOT IN operator is equivalent to IS NULL with single-row subqueries C=ANY and =ALL operators have the same functionality in multiple-row subqueries DThe NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries
单选题Which message categories cannot be disabled by the GMDSS radio operator（）.ANavigational WarningsBMeteorological WarningsCSearch and Rescue InformationDAll of the above
单选题What are the conditions，under GMDSS，whereby a ship is NOT allowed to depart from any port? （）AThe vessel is not capable of performing all required distress and safety functionsBThe vessel is carrying more than the required number of qualified GMDSS radio operatorsCThe vessel has a temporary waiver of its radio license and Safety CertificateDThe vessel is not carrying a GMDSS radio maintainer，but has provided for shoreside maintenance plus duplication of equipment if required
单选题Which statement concerning GMDSS Radio Operator requirements is FALSE（）.AEach compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at seaBEach 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 wellCCommunications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communicationsDWhile 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
单选题The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.AMate's licenseBRestricted radiotelephone operator permitCSecond-class radio operator's licenseDSeaman's document
单选题What are the vessel equipment and personnel requirements for GMDSS? （）ATwo licensed GMDSS radio operatorsBEquipment carriage requirementsCDistress alerting and responseDAll of the above
多选题Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following are true (Choose two.)（）。ARouter C will use ICMP to inform Host 1 that Host 2 cannot be reachedBRouter C will use ICMP to inform Router B that Host 2 cannot be reachedCRouter C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reachedDRouter C will send a Destination Unreachable message typeERouter C will send a Router Selection message typeFRouter C will send a Source Quench message type
单选题Which statement is false？（）A custom URL categories cannot contain IP addressesB custom URL categories cannot override predefined URL categoriesC custom URL categories can contain domain namesD custom URL categories can use regular expressions
单选题On which vessels is GMDSS required? （）AAll vessels capable of international voyagesBVessels operating outside of the range of VHF coastal radio stationsCSOLAS Convention ships of 300 gross tonnage or moreDCoastal vessels of less than 300 gross tons
单选题Where should the GMDSS radio log be kept on board ship（）.AIn the Captain's officeBIn the sea cabinCAt the GMDSS operating positionDAnywhere on board the vessel