In order to insure that the racon signal is visible on your 3 cm radar, the ______.A.10 cm radar should be placed on stangby or turned offB.gain control should be turned to maximumC.radar should be stabilized, head upD.rain clutter control should be off but, if necessary, may be on low
In order to insure that the racon signal is visible on your 3 cm radar, the ______.
A.10 cm radar should be placed on stangby or turned off
B.gain control should be turned to maximum
C.radar should be stabilized, head up
D.rain clutter control should be off but, if necessary, may be on low
相关考题：
The 10-cm radar as compared to a 3-cm radar of similar specifications will ______.A.be more suitable for river and harbor navigationB.provide better range performance on low lying targets during good weather and calm seasC.have a wider horizontal beam widthD.have more sea return during rough sea conditions
What is the purpose of the radar reflector?__________.A.Making objects less visibleB.Making echoes weaker on the radarC.Making large echoes smailerD.Making small objects better visible
________is the most visible signal of distress from a lifeboat at sea in the daytime.A.Smoke signalB.Flash signalC.Fire signalD.Radio emergency transmission
The description Racon beside an illustration on a chart would mean a ______.A.radar conspicuous beaconB.circular radiobeaconC.radar transponder beaconD.radar calibration beacon
A vessel is approaching from dead ahead.Both of her sidelights are visible and her range lights are in line. Which of the following could you do first? ______.A.Sound one blast of the whistleB.Alter course to starboardC.Construct a radar plotD.Sound the danger signal
By radar alone, you detect a vessel ahead on a collision course, about 3 miles distant. Your radar plot shows this to be a meeting situation. You should ______.A.turn to portB.turn to starboardC.maintain course and speed and sound the danger signalD.maintain course and speed and sound no signal
In fog you observe your radar and determine that risk of collision exists with a vessel which is 2 miles off your port bow. You should ______.A.stop your enginesB.sound the danger signal at two-minute intervalsC.hold course and speed until the other vessel is sightedD.take avoiding action as soon as possible
In order to insure that a RACON signal is displayed on the radar, you should ______.A.increase the brilliance of the PPI scopeB.turn off the interference controls on the radarC.use the maximum available range settingD.increase the radar signal output
单选题The common way to obtain your ship’s position is（）.Akeeping a close watch and lookoutBtaking a radar range and bearingCobserving a radar target and listening to signalsDkeeping a well clear caution
单选题You are in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. You must（）.Astop your enginesBsound two prolonged blasts of the whistleCsound the danger signalDslow to bare steerageway
单选题You hear the fog signal of another vessel forward of your beam.Risk of collision may exist.You MUST（）.AReduce speed to bare steeragewayBStop your enginesCBegin a radar plotDAll of the above
单选题The 10-cm radar as compared to a 3-cm radar of similar specifications will（）.Abe more suitable for river and harbor navigationBprovide better range performance on low lying targets during good weather and calm seasChave a wider horizontal beam widthDhave more sea return during rough sea conditions
单选题You are underway in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. You must（）.Astop your enginesBsound two prolonged blasts of the whistleCsound the danger signalDslow to bare steerageway
单选题（）is the most visible signal of distress from a lifeboat at sea in the daytime.ASmoke signalBFlash signalCFire signalDRadio emergency transmission
单选题What would most likely prevent a SART’s signal from being detected?（）ASignal absorption by the ionosphereBHeavy sea swellsCThe rescue personnel were monitoring the 10-cm radarDThe rescue personnel were monitoring the 3-cm radar
单选题A vessel is approaching from dead ahead． Both of her sidelights are visible and her range lights are in line. Which of the following could you do first?（）.ASound one blast of the whistleBAlter course to starboardCConstruct a radar plotDSound the danger signal
单选题If you are on the beach and are signaling to a small boat in distress that your present location is dangerous and they should land to the left，you would（）.Afire a green star to the leftBsend the letter K by light and point to the leftCplace an orange signal to your left as you signal with a white lightDsend the code signal S followed by L
单选题The 3-cm radar as compared to a 10-cm radar with similar specifications will（）.Agive better range performance in rain，hail，etcBdisplay small targets in a mass of dense sea clutter at a greater rangeChave less sea return in choppy rough seasDdisplay a more map like presentation for inshore navigation
单选题（）sends a radio signal from the bottom of the ship to the sea-bed,from which it is reflected.AThe marine sextantBThe chronometerCThe echo sounderDThe radar
单选题In fog you observe your radar and determine that risk of collision exists with a vessel which is 2 miles off your port bow. You should（）.Astop your enginesBsound the danger signal at two-minute intervalsChold course and speed until the other vessel is sightedDtake avoiding action as soon as possible
单选题In order to ensure that a RACON signal is displayed on the radar，you should（）.Aincrease the brilliance of the PPI scopeBturn off the interference controls on the radarCuse the maximum available range settingDincrease the radar signal output
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You are scanning the radar screen for a buoy fitted with racon. How should this signal appear on the PPI display?（）AStarting with a dash and extending radially outward from the targetBAs a broken line from center of PPI to the targetCStarting with a dot and extending radially inward from the targetDStarting with a dash and extending to the right of the target
单选题A radar contact will remain stationary on a relative motion radar display only when it is（）.Aon the same course as your vesselBat the same speed as your vesselCon the same course and speed as your vesselDon a reciprocal course at the same speed as your vessel
单选题The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.AtransmitterBantenna systemCindicatorDmodulator