RADAR上出现同芯弧信号，说明SART与RADAR相距：（）A、100-200米B、300-500米C、1海里以上D、500米-1海里
RADAR上出现同芯弧信号，说明SART与RADAR相距：（）
- A、100-200米
- B、300-500米
- C、1海里以上
- D、500米-1海里
相关考题：
My radar is not working．I require shorebased radar assistance．Is shorebased radar assistance ________ ？A.usedB.availableC.in useD.can be used
The description Racon beside an illustration on a chart would mean a ______.A.radar conspicuous beaconB.circular radiobeaconC.radar transponder beaconD.radar calibration beacon
How can a SART’s effective range be maximized?______A.The SART should be placed in water immediately upon activation.B.The SART should be held as high as possible.C.Switch the SART into the “high” power position.D.If possible, the SART should be mounted horizontally so that its signal matches that of the searching radar signal.
单选题The SART should provide a（）indication of its correct operation and should also inform survivors when it is interrogated by radar.Asight or soundBseeing or soundingCvisual or audibleDseeing or hearing
单选题Which conditions will normally cause a SART to operate in the active mode?（）AIt will respond only to interrogation by 9-Ghz radar signalsBA SART will normally respond to interrogation from a searching vessel's radar if the radar antenna is at least 15 meters highCA SART will normally respond to interrogation from a searching aircraft's radar if the radar's output power is at least 10，000 watts and the aircraft is at a height of 3000 feet and within 30 nautical milesDAll of the above
单选题Which signal is detected as originating from a SART?（）AThe Morse code distress series S-O-S repeated 3 times followed by DE and the vessel's call signBA line of blip code on a radar screen outward from the SART's position along its line of bearingCA line of blip code on a radar screen inward from the SART's position to its own ship along its line of bearingDNone of these
单选题Which statement is true concerning a vessel equipped with operational radar?（）.AThe Master of the vessel must be on the bridge when the radar is in useBThe radar equipment is only required to be used in restricted visibilityCThe use of a radar excuses a vessel from the need of a look-outDThis equipment must be used to obtain early warning of risk of collision
单选题My radar is not working.I require shore based radar assistance.Is shore based radar assistance（）?AusedBavailableCin useDcan be used
单选题Which general statement concerning radar is FALSE?（）.ARaising the antenna height increases the radar rangeBThe ability of radar to detect objects is unaffected by weather conditionsCRadar bearings are less accurate than radar rangesDRadar should be checked regularly during clear weather to ensure that it is operating properly
单选题How can a SART’s effective range be maximized? （）AThe SART should be placed in water immediately upon activationBThe SART should be held as high as possibleCSwitch the SART into the high power positionDIf possible，the SART should be mounted horizontally so that its signal matches that of the searching radar signal
单选题What does a SART signal sound or look like?（）AIt transmits SOS and the vessel's name and position in slow speed Morse CodeBIt will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's positionCIt will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's positionDNone of the above
单选题If there is any doubt as to the proper operation of a radar，which statement is TRUE?（）.AOnly a radar expert can determine if the radar is operatingBAll radars have indicator lights and alarms to signal improper operationCA radar range compared to the actual range of a known object can be used to check the operation of the radarDThe radar resolution detector must be energized to check the radar
单选题When the power of SART is on, it will（）.Atransmit distress signalBsend response signalCtransmit the signal of ship‟s positionDbe start by X-band radar
单选题当救助艇驶向SART约（）时，雷光荧光屏上SART信号呈同芯圆.A100米B500米C1海里D5海里