AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE, MASTS, ETC means ______.A.Blind sectorsB.Sheltered areaC.Unseen areaD.Unscanable area
AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE, MASTS, ETC means ______.
A.Blind sectors
B.Sheltered area
C.Unseen area
D.Unscanable area
相关考题：
If you are the Master of a towing vessel whose only working radar no longer functions，what must you do?A.Notify the Captain of the Port (COTP) if you cannot repair it within 96 hoursB.Notify the Officer in Charge of Marine Inspection (OCMI) if you cannot repair it within 48 hoursC.Moor the vessel until it is repairedD.Anchor the vessel until it is repaired
You are crossing a narrow channel in a 15-meter vessel when you sight a tanker off your port bow coming up the channel. Which statement is TRUE?A.Yours is the give-way vessel because it is less than 30 meters longB.You shall not impede the safe passage of the tankerC.The tanker is the stand-on vessel because it is to port of your vesselD.The tanker is the stand-on vessel because it is the larger of the two vessels
Persons who have taken part in salvage operations，notwithstanding the express and reasonable prohibition on the part of ______________，have no right to any remuneration.A.the vessel from which the services were renderedB.the vessel to which the services were renderedC.the persons whose lives were savedD.the salvors of the vessel，her cargo and accessories
There are two areas off the N coast of France，which remain dangerous because of ______．A.the density of vessel traffic on passage through the straitB.the fact that the passage through the strait is constricted by a series of narrow banks，running NE-SWC.mines lied in the war of 1939-1945D.the strong tidal streams in the strait
In restricted visibility, a vessel which detects by radar alone the presence of another vessel shall determine if a close quarters situation is developing or risk of collision exists. If so, she shall __________.A.sound the danger signalB.when taking action, make only course changesC.avoid altering course toward a vessel abaft the beamD.All of the above
单选题To determine if risk of collision exists，a vessel which is fitted with radar must use（）.Aradar scanningBradar plottingCcompass bearingsDAll of the above
单选题On open waters，a vessel fishing is in a crossing situation with a vessel sailing located on the fishing vessel’s starboard side. Which vessel is the stand-on vessel?（）.AThe fishing vessel because it is to port of the sailing vesselBThe fishing vessel because it is fishingCThe sailing vessel because it is to starboard of the fishing vesselDThe sailing vessel because it is sailing
单选题Which of following physical abilities is not required as to the routine movement around a vessel?（）AMaintain balance and move with agilityBClimb up and down vertical ladders and stairwaysCOpen and close watertight doorsDTake part in vessel evacuation procedures
单选题If you are the Master of a towing vessel whose only working radar no longer functions，what must you do?（）ANotify the Captain of the Port (COTP) if you cannot repair it within 96 hoursBNotify the Officer in Charge of Marine Inspection (OCMI) if you cannot repair it within 48 hoursCMoor the vessel until it is repairedDAnchor the vessel until it is repaired
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You are crossing a narrow channel in a 15-meter vessel when you sight a tanker off your port bow coming up the channel. Which statement is TRUE? （）AYours is the give-way vessel because it is less than 30 meters longBYou shall not impede the safe passage of the tankerCThe tanker is the stand-on vessel because it is to port of your vesselDThe tanker is the stand-on vessel because it is the larger of the two vessels
单选题Access to a cargo pumproom on a tank vessel carrying grades A，B，C or D liquid cargoes shall be（）.Aat least 13.1 feet away from the galleys，living quarters or navigation spacesBfrom the open deckConly from areas equipped with power ventilation systemsDisolated from any part of the vessel which normally contains sources of vapor ignition
单选题In determining safe speed，the Rules list all of the following as factors which must be taken into account EXCEPT the（）.Alimitations of radar equipmentBpresence of background lights at nightCmaximum horsepower of your vesselDmaneuverability of your vessel
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The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.Aone-millionth part of a secondBone-thousandth part of a secondCone-hundredth part of a secondDone-tenth part of a second
单选题Areas which cannot be scanned by the radar of the vessel because they are shielded by parts of its superstructure, masts,etc means（）.Ablind sectorsBsheltered areaCunseen areaDunscan ble area
单选题Persons who have taken part in salvage operations，notwithstanding the express and reasonable prohibition on the part of（），have no right to any remuneration.Athe vessel from which the services were renderedBthe vessel to which the services were renderedCthe persons whose lives were savedDthe salvors of the vessel，her cargo and accessories
单选题The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.AbossBknuckleCskegDstrut
单选题Which of the following statements is TRUE regarding automatic identification systems (AIS) ? （）AAIS may be used to make passing arrangements via ship-to-ship text messaging thus relieving a vessel operator from sounding whistle signals or making contact via radiotelephoneBAIS may be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is still required to sound whistle signals unless the arrangement is made via radiotelephoneCAIS cannot be used to make passing arrangements because the system does not have the ability to communicate from ship-to-ship in this mannerDAIS cannot be used to make passing arrangements because the use of the ship-to-ship text messaging feature in this way is prohibited
单选题You are underway in thick fog.You have not determined if risk of collision exists.Which statement is true?（）AYour speed must be reduced to bare steerage waysBA look-out is not required if the radar is onCThe radar should always be kept on a short-range scaleDFog signals are only required when a vessel is detected by radar
单选题AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE，MASTS，ETC means（）.ABlind sectorsBSheltered areaCUnseen areaDUnscanable area
单选题Access to a cargo pumproom on a tanker carrying grades A，B，C or D liquid cargoes shall be（）.Aat least 13.1 feet away from the galleys，living quarters or navigation spacesBfrom the open deckConly from areas equipped with power ventilation systemsDisolated from any part of the vessel which normally contains sources of vapor ignition
单选题Which statement concerning maneuvering in restricted visibility is FALSE?（）.AA vessel which cannot avoid a close-quarters situation with a vessel forward of her beam shall reduce her speed to bare steeragewayBA vessel which hears a fog signal forward of her beam shall stop her enginesCA vessel which hears a fog signal forward of the beam shall navigate with cautionDIf a vessel determines by radar that a close-quarters situation is developing，she shall take avoiding action in ample time
单选题In restricted visibility, a vessel which detects by radar alone the presence of another vessel shall determine if a close quarters situation is developing or risk of collision exists. If so, she shall（）.Asound the danger signalBwhen taking action, make only course changesCavoid altering course toward a vessel abaft the beamDAll of the above
单选题Which of the following radar contacts will present the most immediate danger?（）.AA vessel on the starboard bow whose bearing is changing and range is decreasingBA vessel on the starboard bow whose bearing is steady and range is increasingCA vessel on the port bow whose bearing is steady and range is decreasingDA vessel on the port bow whose bearing is changing to the left and range decreasing
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