GMDSS通信英语试题(1)
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A ship operating in sea area A1 must have the following provisions of maintenance:
- A.Shore maintenance
- B.Duplication of equipment
- C.At Sea Maintenance
- D.Any one of these
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What is the basic concept of GMDSS?
- A.Search and rescue authorities shore can be alerted to a distress situation
- B.shipping in the immediate vicinity of a ship in distress will be rapidly alerted
- C.Shore-side authorities and vessels can assist in a coordinated SAR operation with minimum delay
- D.All of these
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Which system has the least effective radius of operation?
- A.HF SITOR
- B.MF NBDP
- C.VHF DSC
- D.NATTEX
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Which of the following systems is most likely to be subject to fading or static interference?
- A.HF NBDP
- B.INMARSAT
- C.Digital Selective Calling on channel 70
- D.VHF ARQ
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Which system is most likely to be affected by atmospheric disturbances?
- A.VHF DSC
- B.INMARSAT Standard-C
- C.MF/HF radiotelephony
- D.Safety NET
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Which system is least likely to be affected by atmospheric disturbances?
- A.NAVTES
- B.MF NBDP
- C.SES
- D.HF NBDP
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What is the minimum operation time of reserve source of energy on ships with an emergency energy source?
- A.1 hour
- B.6 hours
- C.12 hours
- D.24 hours
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Vessel operating in which sea area(s) are required to carry either INMARSAT or HF equipment or a combination thereof under GMDSS?
- A.All sea areas
- B.A3
- C.A4
- D.A3 and A4
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What is the primary purpose of the GMDSS?
- A.Environmental protection
- B.A common international communications system for all shipping
- C.Automate and improve emergency communications for the world’s shipping industry
- D.Effective and inexpensive communications
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What statement is generally correct regarding the maintenance requirements for ships under GMDSS?
- A.Redundancy of functions of certain equipment will partially meet this requirement
- B.On-board maintenance provided by a person holding a Second Class Electronic Certificate license will partially meet the requirements
- C.shore based maintenance and scheduled tests and inspections will partially meet this requirement
- D.All of these
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What is the minimum operation time of reserve source of energy on ships without an emergency energy source?
- A.1 hour
- B.6 hours
- C.12 hours
- D.24 hours
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Which statement is false regarding a GMDSS-equipped ship?
- A.A conditional or partial exemption may not be granted, even in exceptional circumstances, for a single voyage outside the sea area for which the vessel is equipped
- B.ships must have the required equipment inspected at least once every 12 months
- C.The regulations apply to all passenger ships regardless of size and cargo ships of 300 gross tons and upwards
- D.Ships must carry person(s) holding a GMDSS operator’s license for distress and safety radio communications purposes
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Every A3 ship, while at sea, shall maintain a continuous watch:
- A.On VHF DSC channel 70
- B.On the distress and safety DSC frequency 2,187.5 KHz and 8,414.5 KHz and also on at least one of the distress and safety DSC frequencies 4,207.5 KHz, 6,312 KHz, 12,577 KHz or 16,804.5 KHz, appropriate to the time of day and the geographical position of
- C.For satellite shore-to-ship distress alerts
- D.All of these
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Who can make the determination to suspend AIS continuous listening watch?
- A.The operator, when the vessel is no longer operating in open sea
- B.The Master, when determining that armed robbery may occur
- C.An operator when it is determined that the noise becomes annoying to personnel on the bridge
- D.Anyone, if it is determined that the noise interferes with listening on 97.5MHz FM transmissions
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What equipment is used in or near the survival craft?
- A.NAVTEX
- B.Fathometer
- C.COSPAS-SARSAT
- D.EPIRB
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Which of the following documents are required by GMDSS for vessels on international voyages?
- A.A copy of the IMO master plan of shore-based facilities
- B.Station logs
- C.ITU Radio Regulations
- D.All of these
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Under GMDSS, the proper functioning of the DSC facilities shall be tested periodically without radiation of signals, by use of the means provided by equipment. What is the period?
- A.Weekly
- B.Annually, by a representative of the MSA
- C.Daily
- D.Monthly
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Under GMDSS, the reserve source of energy is not a battery (for example, a motor generator) the reserve source of energy must be tested at what minimum intervals?
- A.Weekly
- B.Annually, by a representative of the MSA
- C.At the annual SOLAS inspection
- D.Monthly
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A vertical antenna (whip) has a radiation pattern best described by which statement?
- A.A Figure eight
- B.A cardioids
- C.A circle
- D.An ellipse
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GMDSS-equipped ships will be required to perform which of the following communications functions?
- A.Distress alerting and maritime safety information
- B.Search and Rescue coordination and on-scene communications
- C.Bridge-to-bridge and general radio communications
- D.All of these
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What is the term which refers to the supply of electrical energy required to supply radio installations on every ship for the purpose of conducting distress and safety radio communications in the event of failure of the ship’s main and emergency sources of electrical power?
- A.Emergency power
- B.Reserve source of energy
- C.Ship’s emergency diesel generator
- D.Ship’s standby generator
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Which statement is false regarding a GMDSS-equipped ship?
- A.A conditional or partial exemption may be granted, in exceptional circumstances, for a single voyage outside the sea area for which the vessel is equipped
- B.ships must have the required equipment inspected at least once every five years
- C.The regulations apply to all passenger ships regardless of size and cargo ships of 300 gross tons and upwards
- D.Ships must carry person(s) holding a GMDSS operator’s license for distress and safety radio communications purposes
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Which statement is false regarding a GMDSS-equipped ship?
- A.A conditional or partial exemption may be granted, in exceptional circumstances, for a single voyage outside the sea area for which the vessel is equipped
- B.ships must have the required equipment inspected at least once every 12 months
- C.Ships must carry at least three persons holding GMDSS operator’s license for distress and safety radio communications purposes
- D.The regulations apply to all passenger ships regardless of size and cargo ships of 300 gross tons and upwards
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What is the minimum requirement of a GMDSS operator?
- A.GMDSS operator license
- B.Third officer license
- C.General Radiotelephone Operator license and Radar Endorsement
- D.General Radiotelephone license or First or Second Class Radiotelegraph license with GMDSS Radio Officer’s endorsement
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Which is not a functional requirement of GMDSS MF/HF equipment?
- A.Radiotelephony on 2152 KHz
- B.Transmitting distress signals by DSC on 2187.5 KHz
- C.Receiving and Watch keeping by DSC on 2187.5 KHz
- D.Transmitting and receiving by NBDP with MF
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What is defined as an area, excluding sea area A1, within the radiotelephone coverage area of at least one MF coast station, in which continuous DSC alerting is available as defined by the IMO?
- A.Ocean Area Regions AOR-E, AOR-W, POR or IOR
- B.Sea Area A4
- C.Sea Area A3
- D.Sea Area A2
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What is defined as and area, excluding sea areas A1 and A2, within the coverage of an INMARSAT geostationary satellite in which continuous alerting is available?
- A.Ocean Area Regions AOR-E, AOR-W, POR or IOR
- B.Sea Area A3
- C.Sea Area A4
- D.Coastal and Inland Waters
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Which channel is designated for VHF Digital Selective Calling?
- A.Channel 70
- B.Channel 06
- C.Channel 13
- D.Channel 16
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In which sea areas(s), INMARSAT service are available?
- A.Sea Area A3 only
- B.Sea Area A1, A2 and A3
- C.Sea Area A3 is included
- D.Excluding sea area A1
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Which of the following is true regarding the definition of the sea areas?
- A.It is assured that INMARSAT services are available in sea area A3.
- B.It is assured that INMARSAT services are available in sea area A1.
- C.It is assured that INMARSAT services are available in sea area A2.
- D.It is assured that INMARSAT services are available in sea area A4.
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What is “Protocol”?
- A.NMEA protocol is often selected by engineer onboard
- B.A defined set of communications standards which lay down the parameters to which all users must abide
- C.Protocols in general use are X.25 and X.400
- D.All of these
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What is defined as the area within the radiotelephone coverage area of at least one VHF coast station in which continuous DSC alerting is available as defined by the IMO regulation for GMDSS?
- A.Ocean Area Regions AOR-E, AOR-W, POR or IOR
- B.Sea Area A2
- C.Sea Area A1
- D.Coastal and Inland Waters
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Which equation shows right ratio between the frequency (f) and the wavelength (Lambda) of radio waves?
- A.f=Lambda/C
- B.f=C x Lambda
- C.f=C/Lambda
- D.f=C x 6.28 x Lambda
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Which system is often used to provide accurate vessel position information to the GMDSS equipment?
- A.COSPAS-SARSAT
- B.GPS
- C.EPIRB
- D.INMSRSAT-F
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What is the wavelength, if the frequency is 6MHz?
- A.180m
- B.18m
- C.50m
- D.500m
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What is the approximate range of VHF radio waves during the day time?
- A.30 nautical miles
- B.600 nautical miles
- C.150 nautical miles
- D.1200 nautical miles
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What is the approximate range of MF radio waves during the day time?
- A.30 nautical miles
- B.600 nautical miles
- C.150 nautical miles
- D.1200 nautical miles
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Which radio equipment is not necessary for the ships sailing in the sea area A1?
- A.NAVTES receiver
- B.EPIRB
- C.HF DSC
- D.VHF DSC
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Which radio equipment is not necessary for the ships sailing in the sea area A2?
- A.MF DSC
- B.VHF radio telephone
- C.VHF DSC
- D.VHF EPIRB
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Which radio equipment is not necessary for the ships sailing in the sea area A3?
- A.GSM radiotelephone
- B.MF DSC
- C.Enhanced Group Calling receiver
- D.Satellite EPIRB
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Which of the following is a functional or carriage requirement for compulsory vessels?
- A.A compulsory vessel must satisfy certain equipment carriage requirements that are determined by where the vessel sails
- B.A compulsory vessel must carry licensed GMDSS operators, the number should be determined by the associated administration
- C.A compulsory vessel must be bale to transmit and respond to distress alerts
- D.All of these
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Which radio equipment is not necessary for the ships sailing in the sea area A1?
- A.NAVTES receiver
- B.VHF EPIRB
- C.406MHz EPIRB
- D.VHF DSC
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What is defined as an area outside sea areas A1, A2 and A3?
- A.AOR-E
- B.AOR-W
- C.Coastal and inland waters
- D.A4
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Which statement is false regarding the radio operator requirements for a GMDSS-equipment ship station?
- A.One of the qualified GMDSS operators must be designated to have primary responsibility for radio communications during distress incidents
- B.A qualified GMDSS operator, and a qualified backup, must be designated to perform distress, urgency and safety communications
- C.Maintaining a record of all incidents connected with the radio communication service which appear to be of importance to safety of life at sea is not required
- D.While at sea, all adjustments or radio installations, servicing or maintenance of such installations which may affect the proper operation of the GMDSS station must be performed by, or under the supervision of, a qualified GMDSS operator
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Which statement is false regarding the maintenance of GMDSS equipment at sea?
- A.The GMDSS operator may not be the person designated to have primary responsibility for radio communications during distress incidents
- B.Ships must carry at least one person who qualifies as a GMDSS maintainer for the maintenance and repair of equipment if the at sea maintenance option is selected
- C.All at sea maintenance and repairs must be performed by, or under the supervision of a person holding a GMDSS First/Second Class Radio Electronic Certificate
- D.The GMDSS maintainer may be the person responsible for ensuring that the watches are properly maintained and that the proper guard channels and the vessel’s position are entered in the DSC equipment
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What equipment can be used to receive Maritime Safety Information?
- A.HF NBDP
- B.NAVTES
- C.EGC receiver
- D.All of these
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What is the fundamental concept of the GMDSS?
- A.It is intended to automate and improve existing digital selective calling procedures and techniques
- B.It is intended to automate and improve emergency communications in the maritime industry
- C.It is intended to provide more effective but lower cost commercial communications
- D.It is intended to provide compulsory vessels with a collision avoidance system when they are operating in waters that are also occupied by non-compulsory vessels
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Which of the following is a required GMDSS function?
- A.Transmit and receive location signals
- B.Transmit and receive general communications
- C.Both of these
- D.None of these
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GMDSS is required for which of the followings?
- A.All vessels capable of international voyages
- B.SOLAS Convention ships of 300 gross tonnage or more
- C.Vessels operating outside of the range of VHF coastal radio stations
- D.Coastal vessels of less than 300 gross tons
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Which of the following is a required GMDSS function?
- A.Bridge-to-bridge communications
- B.Reception of weather map facsimile broadcasts
- C.Both of these
- D.None of these