GMDSS单选题200.doc

GMDSS题库一、单选题：1. _is a generic term meaning, as the case may be uncertainty phase, alert phase or distress phase.A. Emergency phase. B. Distress phase C. Alert phase. D. Uncertainty phase.2. When approaching the SAR scene, ships should make full use of any radio direction-finding facilities to _ and to locate any transmissions from EPIRB.A. find B. search C. home D. transmit3. It is important that _ for indicating the position of ships in distress or survival craft should be properly used.A. communication methods B. signaling methods C. rockets and hand flares. D. All are right4. The broadcast of MSI will be made _.A. continuously B. on terrestrial communication systemC. on satellite communication system D. both B and C.5. The INMARSAT space segment consists of the satellite and support facilities operated by INMARSAT. these satellites _.A. arent moving B. are stationary C. are in geostationary orbits D. are in the polar orbits.6. _ is an area within the radiotelephone coverage of at least one VHF coast station in which continuous DSC alerting is available.A. Sea area A1. B. Sea area A2 C. Sea area A3 D. Sea area A4.7. _is an area, excluding area A1, within the radiotelephone coverage of at least one MF coast station in which continuous DSC alerting is available.A. Sea area A1. B. Sea area A2. C. Sea area A3. D. Sea area A4.8. _ is an area excluding sea area A1 and A2, within the coverage of an INMARSAT geostationary satellite in which continuous alerting is available.A. Sea area A1. B. Sea area A2. C. Sea area A3. D. Sea area A4.9. _ is safety communication between ships from the position from which the ships are normally navigated.A. VHF communication. B. MF communication. C. INMARSAT communication. D. Bridge-to-bridge communication.10. _ includes navigational and meteorological warnings, meteorological forecasts and other urgent safety related messages broadcast to ships.A. Distress traffic. B. Urgency communication. C. Public correspondence. D. Maritime Safety Information.11. _ is a unit responsible for promoting efficient organization of SAR services and for coordinating the conduct of SAR operations with a SAR region.A. NCC. B. RCC. C. NSC. D.LUT.12. _ is a radiocommunication service in which transmissions are intended for direct reception by the general public.A. Receiving service. B. AM service. C.FM service. D. Broadcasting service.13. _ is a satellite-aided SAR system based on low-altitude near polar orbiting satellites and designed to locate distress beacons transmitting on the frequencies 121.5 MHz and 406MHz.A. GPS system. B. INMARSAT system. C. NNSS system. D. COSPAS-SARSAT system.14. _is the coordinate broadcast and automatic reception on 518kHz of MSI be means of NBDP using the English Language.A. International NAVTEX. B. National NAVTEX. C. Broadcast of MSI reception of MSI. D. HF MSI Broadcast.15.MCC is the abbreviation for Mission _ Centre.A. Correction B. Certificate. C. Control D. Calling.16. IDD is the abbreviation for International _ Dialing.A. Data. B. Datum. C. Direct. D. Distress.17. The letter G in GMDSS is the abbreviation for the word _.A. Global. B. General. C. Ground. D. Group.18. The second letter S in SSB is the abbreviation for the word_.A. Single. B. Side. C. Shipyard. D. Safety.20. FEC is the abbreviation for Forward _Correction.A. East. B. Error. C. Earth. D. Easy.21. The world wide navigational_ service, is a coordinate globe service for the broadcast by radio of vital information on hazards to marine navigation.A. Weather. B. Watch. C. Warning. D. Wire.22. VDU is the abbreviation for Visual _ Unit.A. Data. B. Direct. C. Digital. D. Display.24.Choice of HF bands will depend on the position of the ship in distress, the geographical area to be alerted and current_.A. communication congestion. B. day and night characteristics. C. propagation characteristics. D. equipment conditions.25. In GMDSS, MSI broadcasts will be made on two _ which provide near continuous automated reception on board ships.A. dedicated systems. B. associated systems. C. different systems. D. various systems.26. The coverage area for a satellite is defined as the area on the earths surface within which _ can be made with the satellite.A. line of sight communication. B. service communication. C. two-way communication. D. locating signal.27. The service of MSI provides a combined news broadcast suitable for _ in all principal waters of the globe.A. a vessel. B. some vessels. C. all ships. D. some specific ships.28. Before an INMARSAT-A SES can be used in the INMARSAT system, it must have been properly _.A. fixed and tried. B. performed and confirmed. C. observed and surveyed. D. installed and commissioned.29. COSPAS-SARSAT consists of_ _ satellites in polar orbit and a network of earth stations.A. a B. a few of. C. 4. D. a constellation of.30. Distress beacons transmit signals that are detected by COSPAS-SARSAT spacecraft in _.A. polar orbit. B. geostationary orbit. C. equator. D. clouds.31. Every ship, while at sea, _ maintain continuous watch on VHF DSC channel 70.A. will B. / C. shall D. should.32. The appropriate certificate related to the GMDSS _by the administration concerned.A. is sold. B. is given or allowed. C. is kept and edited. D. issued or recognized.33. The communication arrangements are designed to enable distress alerting to be performed in _ directions in all sea areas.A. one. B. two. C. three. D. four.34. The SART should provide a _ indication of its correct operation and also inform the survivors when it is interrogated by radar.A. visual. B. audible. C. smelling. D. A or B.35. Warnings are transmitted at specified times and remain in force _ the information is valid.A. so that. B. even if. C. as long as. D. other than.36. DSC will form the basis for distress alerting and safety calling. The abbreviation DSC means_.A. Distress safety Control B. Difficult Standard Communication. C. Digital Selective Calling. D. Different System Communication.37. The _is the nerve center of INMARSAT system, and it is located in the INMARSAT headquarters building in London.A. SES. B. CES. C. OCC. D.NCS.38. The _ consists of two parts: the above deck equipment (ADE) and the below deck equipment (BDE).A. SES. B. CES. C. OCC. D.NCS.39. The term_ is included in the generic name Land Earth Station (LES), which applies to earth stations used for either maritime or land-based communication.A. SES. B. CES. C. MES. D.RCC.40. Technical code ( B1 B2 B3 B4) in NAVTEX appears in the_.A. starting of each message. B. ending of each message. C. preamble of each message. D. framework of each message.41.In technical code ( B1 B2 B3 B4), the _is a single unique letter which is allocated to each message transmitter.A. B1. B. B2. C. B3 B4. D. B1 B2.42. Each ship station has its own unique _MMSI which is included automatically in each DSC call.A. 4-digit. B. 5-digit. C. 7-digit. D. 9-digit.43. The _ responsible for controlling a SAR operation shall also coordinate the distress traffic.A. NCS. B. CES. C. OCC. D.RCC.44. The urgency traffic shall be sent only on the authority of the _ responsible for the mobile unit.A. chief engineer. B. master. C. duty officer. D. telegrapher.45. There are at present three types of beacons, namely ELTs, EPIRBs and PLBs. _ is usually used on board ship.A. ELTs. B. EPIRBs. C. PLBs. D. GPS.46. On range of VHF, those transmitters and receivers within radio sight _automatically guarantee that an acceptable signal will be received at the point.A. / . B. do. C. dont D. does not.47. The GMDSS will be fully implemented in _, when except for a few remaining stations, use of Morse radiotelegraphy by ships will cease.A. 1995. B. 1999. C. 2001. D.2010.48. _ is the Automatic Repetition request which is used in NBDP mode.A. FEC. B. SELCALL. C. ARQ. D. RC.49. _ is rapid and successful reporting of a distress incident to a unit which can provide or coordinate assistance.A. Distress channel. B. Distress alerting. C. Distress call. D. Distress priority.50. All ships, according to the requirements for radiocommunication under_, should be fitted with rediotelephone equipment.A. STCW. B. IMO. C. SOLAS. D. MARPOL.51. Although satellites will play an important role in the GMDSS, they will not completely replace the _.A. Global system. B. Signaling system. C. Terrestrial system. D. Transmitting system.52. The GMDSS includes three sub-systems: INMARSAT system, COSPAS-SARSAT system and_.A. GPS system. B. NAVTEX system. C. terrestrial radio system. D. DSC system.53. Coastal vessels will only have to carry minimal equipment if they do not operate beyond the range of shore-based _ radio station.A. VHF. B. MF. C. HF. D. UHF.54. The transmission of a _ indicates that a ship is in distress and requires immediate assistance.A. urgent traffic. B. distress alert. C. routine traffic. D. safety traffic.55. The satellites of INMARSAT are placed in a _, 35700km over the major ocean regions.A. polar orbit. B. geostationary orbit C. the Milky way. D. the Moon.56. A SES can communicate via that satellite with any CES that is also pointed at _.A. The same direction. B. the Moon. C. the same satellite. D. the other satellite.57. For ships equipped with an INMARSAT SES, sending a distress alert is _.A. both special and slow. B. both complex and certain. C. both general and giant. D. both simple and certain.58. There are based currently on _ operational regions, each with its own operational satellite, with back-up satellite in the event of failure.A. two. B. three. C. four. D. five.59. One of the shortcomings of the using radio is that radio waves travel in _.A. curve. B. triangle lines. C. square lines. D. straight lines.60. The present INMARSAT system isnt available in_.A. Atlantic ocean region. B. Pacific ocean region. C. India ocean region. D. North polar ocean region.61. For distress traffic by radiotelephony, calls shall be _by the distress signal MAYDAY.A. suffixed. B. prefixed. C. behind of. D. in the front.62. _ is commonly used in distress communication if it is not occupied by a distress message.A. Channel 06. B. Channel 12. C. Channel 16. D. Channel 08.63. When using VHF, the users should avoid _ signals.A. necessary. B. important. C. superfluous. D. sound.64. _ equipment may achieve bridge-to-bridge communication?A. HSD. B. HF. C. VHF. D. LF.65. A distress signal transmitted from which EPIRB is relayed by an INMARSAT satellite to CESs?A. A-band EPIRBs. B. L-band EPIRBs. C. C-band EPIRBs. D. 406Mhz EPIRBs.66. The SART is required to have sufficient battery capacity to operate in the stand-by mode for what period of time?A. eight hours. B. three days. C. four days. D. forty-eight hours.67. The ships operate in all sea areas must carry _equipment.A. VHF. B. MF. C.HF. D. satellite EPIRB.68. _ is not available in the INMARSAT system.A. Automatic calling. B. Radiotelephone. C. Direct-printing telegraphy. D. HF MSI.69. _ is not available in the VHF, MF and HF terrestrial systems.A. DSC. B. Direct-printing radiotelegraphy. C. SafetyNET MSI D. NAVTEX.70. The distress alerting information includes all of the below except the _.A. the recorded date. B. course and speed of the ship. C. name or call sign of the ship. D. names of the crew members.71. The functional requirements of the GMDSS include transmitting and receiving _distress alerts.A. ship to ship. B. ship to shore. C. shore to ship. D. A, B and C.72. The _ provide the link between the satellites serve as NCSs.A. SESs. B. CESs. C. OCCs. D. CSSs.73. The COSPAS-SARSAT system is available to_.A. Canada only. B. the former USSR and USA. C. China. D. all countries.74. The _shall have absolute priority over all other messages.A. navigational warning. B. medical message. C. urgency message. D. distress call.75. The GMDSS can make sure the promulgation of distress alert in_ directions.A. 5. B. 4. C. 3. D.2.76. Coastal area of China lies in NAVAERA_.A. 6. B. 8. C. 11. D.16.77. International NAVTEX must be carried out in _.A. Chinese. B. English. C. Spanish. D. German.78. Each radiotelegram should be transmitted _ by the sending station. A. twice a day. B. once only. C. as many times as possible. D. continuously. 79.Every ship. While at sea, shall be capable of transmitting those as listed below except _.A. ship to ship distress alerts. B. shore to ship distress alerts. C. ship to shore distress alerts. D. on- scene communication.80. _ is used for locating of the ship or survival craft by searching ships and aircraft when near the distress position.A. VHF equipment. B. NAVTEX equipment. C. SART. D. EPIRB equipment.81. The equipment required to be carried by a ship will be determined by the ships _.A. area of operation. B. size. C. date of building. D. type.82. For communications between a coast station and a ship station, the _shall finally decide frequency or channel to be used.A. station called B. calling station C. coast station D. ship station83.On hearing an urgent signal, every station shall take care _interfere with transmission of the message which follows it.A. do not B. to C. mustnt to D. not to 84. The equipments of the GMDSS required on a ship depend on _in which they operate.A. its TGT B. its engine type C. its trade areas D. its work condition85. Distress alert shall be addressed to _you may reach.A. a mobile station B. a coast station C. a particular station D. all the mobile and coast station.86. All stations hearing the distress alert shall listen to the alert communication until they are satisfied that message is _to them.A. of much concerned B. of no concern C. in relation D. directly related.87. The EGC receiver will be dedicated to the EGC function which ensures a high probability of receipt of _messages.A. ship-to-ship B. ship-to-shore C. shore-to-ship D. shore-to-shore.88. The FEC mode is for _from _station to two or more other stations when available.A. receiving messages/one coast B. transmission/one coast or ship C. communicating/one ship D. contacting/other.89. The EPIRBs should be mounted _to be protected from harmful conditions.A. at a regular place B. anywhere on board C. at the higher place on the vessel D. in one hold90. _has the right to decide the MSI transmission charges.A. National telecommunication department and the CES related. B. ITU C. WMO. D. International billing and settlement bank.91. It was in _that the first ship was fitted with radio.A.1899 B.1912 C.1914 D.190692. IMO in co-operation with IHO established the WWNWS for_.A. the broadcast of MSI B. the co-ordination and broadcast of navigational warning C. the co-ordination of meteorological report D. all are right.93. If the ship suddenly sunk or the distress destroyed the radio station _should be mainly used.A. the INMARSAT SES B. the DSC C. the EPIRB D. the SART.94. When sailing in sea area A2 ships will carry_A. VHF. B. MF. C. EPIRB. D. A, B, and C are required.95. The contribution by the _was crucial to the development of the GMDSS.A.IMO B.WMO C.ITU D.INMARSAT96. Standard-C SESs cannot be used for_.A. telephone communications B. telex communications C. data services D. electronic mail services.97. On-scene communications are normally made on _distress and safety frequency/ies.A.VHF B.MF C.HF D.VHF and MF.98. The EPIR