Radar is of great help to ship in poor（）(能见度).A、visibilityB、VHFC、visibleD、compass
Radar is of great help to ship in poor（）(能见度).
- A、visibility
- B、VHF
- C、visible
- D、compass
相关考题：
Radar beacons are transmitters designed to produce a ___ on the screens of ship’s radar sets.A.incorrect imageB.distinctive imageC.pictorial imageD.pictographic image
Radar reflectors are required for ______.A.all fishing vessels over 39 feet in lengthB.sail-propelled fishing vesselsC.all fishing vessels of less than 200 GTD.wooden hull fishing vessels with a poor radar echo
The appearance of nimbostratus clouds in the immediate vicinity of a ship at sea would be accompanied by which of the following conditions?______.A.Rain and poor visibilityB.Dropping barometric pressure and backing wind in the Northern HemisphereC.High winds and rising seaD.Severe thunderstorms
The common way to obtain your ship’s position is ______.A.keeping a close watch and lookoutB.taking a radar range and bearingC.observing a radar target and listening to signalsD.keeping a well clear caution
Before sailing，mariners on duty shall check the headings of magnetic compass by comparison with ______.A.ship's clockB.engine movement recorderC.repeatersD.navigation lights
Your radar is set on a true motion display．Which of the following will NOT appear to move across the PPI scope ________．A.Echoes from a buoyB.Own ship's markerC.Echo from a ship on the same course at the same speedD.Echo from a ship on a reciprocal course at the same speed
In determining a safe speed of your ship, _____ shall not be among those taken into account.A.the state of visibilityB.the traffic densityC.the number of crew on boardD.the maneuverability of the vessel
Because of the （）, we have to keep a sharp lookout.A、poor visibilityB、good visibilityC、good weatherD、dry weather
单选题Radar beacons are transmitters designed to produce a（）on the screens of ship’s radar sets.Aincorrect imageBdistinctive imageCpictorial imageDpictographic image
单选题Knowing the compass heading that is 90°to the side of a ship will enable the operator of a survival craft to initially steer（）.Ainto the windBaway in fire and smokeCdirectly to the standby boatDdirectly to the nearest land
单选题For ship-to-shore distress alerts, you can use（）.AINMARSAT, EPIRB and DSCBNAVTEX, NBDP and R/TCINMARSAT, VHF and SARTDEPIRB, DSC and 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The fitting of an efficient radar reflector is likely to considerably increase the ship’s probability of（）.AdetectionBbeing detectedCthe detectiveDthe detected
单选题At that time my ship and others were（）within 40 degrees of the compass.AyawingBmovinCturningDpitching
单选题Radar reflectors are required for（）.Aall fishing vessels over 39 feet in lengthBsail-propelled fishing vesselsCall fishing vessels of less than 200 GTDwooden hull fishing vessels with a poor radar echo
单选题To center a compass bowl in its binnacle，you should have the ship on an even keel，heading north or south，and adjust the screws until（）.Athe compass heading is in line with the lubber's lineBthere is no lost motion in the gimbal ringsCno change of heading by compass is observed if you raise and lower the heeling magnetDthe gimbal rings do not strike the compass frame when they are tilted
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Which procedure(s) shall be used to determine risk of collision? （）AWatching the compass bearing of an approaching vesselBSystematic observation of objects detected by radarCLong-range radar scanningDAll of the above
单选题Your radar is set on a true motion display.Which of the following will NOT appear to move across the PPI scope（）.AEchoes from a buoyBOwn ship's markerCEcho from a ship on the same course at the same speedDEcho from a ship on a reciprocal course at the same speed
单选题At least（）radar transponder shall be carried on each side of every cargo ship of 500 gross tonnage and upwards.AoneBtwoCthreeDfour