It is dangerous for vessels without the use of radar ______ the estuary．A.To getB.To approachC.To proceedD.To close
It is dangerous for vessels without the use of radar ______ the estuary．
A.To get
B.To approach
C.To proceed
D.To close
相关考题：
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
MV ATLANTIC AT 0205UTC A BLACK FLOATING MINE WAS SIGHTED IN APPROX POSITION LAT 15.30N LONG 112.30E DANGEROUS TO NAVIGATION VESSELS IN VICINITY. According to this cable，the mine ______.A.has nothing to do with navigationB.dangerous to navigationC.the mine is drifting with the windD.the mine is not sighted by the vessel
The following conditions，except ______，require that vessels be towed through the entire Canal．A.vessels without mechanical motive powerB.vessels with disabled machinery or bad steeringC.vessels with dangerous cargoes on boardD.vessels liable to become unmanageable for any other reason
A FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines ______.A.Separated lineB.Divided lineC.Reference lineD.Segregated line
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
It is dangerous for vessels without the use of radar______the estuary(河口)．A.to getB.to approachC.to proceedD.to close
单选题A flashing red light displayed at a single lock means that the lock（）.Ais ready to use but vessels must stand clearBis ready to use and vessels may approachCcannot be made ready immediately and vessels shall stand clearDcannot be made ready immediately but vessels may approach
单选题The steering and sailing rules for vessels in restricted visibility apply to vessels（）.Ain sight of one another in fogBnavigating in or near an area of restricted visibilityConly if they are showing special purpose lightsDonly if they have operational radar
单选题A navigator fixing a vessel’s position by radar （）.Acan use radar information from one object to fix the positionBshould never use radar bearingsCshould only use radar bearings when the range exceeds the distance to the horizonDmust use information from targets forward of the beam
单选题It is danger for vessels without the use of（）to approach the estuary in such poor visibility.ALoran CBDirection FinderCGyro- compassDRadar
单选题The officer of the watch should use radar when appropriate and at all times in（）waters.AcongestingBcongestedCcongestionDcongest
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A FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines（）.ASeparated lineBDivided lineCReference lineDSegregated line
单选题Human ingenuity was initially demonstrated in ______.Athe use of machines to produce science fictionBthe wide use of machines in manufacturing industryCthe invention of tools for difficult and dangerous workDthe elite’s cunning tackling of dangerous and boring work
单选题What is TRUE when operating in fog and other vessels are detected by radar?（）Ayou should make an ample change to port for a vessel crossing on the starboard bowBYou should maneuver in ample time if a close-quarters situation is developingCYou should determine the course and speed of all radar contacts at six minutes intervalsDLong-range scanning will provide early warning of all other vessels within the radar’s range
单选题It is dangerous for vessels without the use of radar（）the estuary.Ato getBto approachCto proceedDto close
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Which statement is TRUE concerning a vessel equipped with operational radar?（）.AShe must use this equipment to obtain early warning of risk of collisionBThe use of a radar excuses a vessel from the need of a look-outCThe radar equipment is only required to be used in restricted visibilityDThe safe speed of such a vessel will likely be greater than that of vessels without radar
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Traffic lanes（）on this chart are recommended for use by all vessels.AshowBshowedCshowingDshown
单选题When navigating in thick fog with the radar on，you should（）.Astation the look-out in the wheelhouse to keep a continuous watch on the radarBsecure the sounding of fog signals until a vessel closes within five milesCstation a look-out as low down and far forward as possibleDkeep the radar on the shortest available range for early detection of approaching vessels
单选题It is dangerous for vessels without the operational radar（）the estuary.Ato getBto approachCto proceedDto close
单选题The use of this rule does not relieve vessels（）their obligations to comply with the local laws.AfromBofCoffDover