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
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 port
B.turn to starboard
C.maintain course and speed and sound the danger signal
D.maintain course and speed and sound no signal
相关考题：
Risk of collision may exist ______.A.if the compass bearing of an approaching vessel does NOT appreciably changeB.even when an appreciable bearing change is evident, particularly when approaching a vessel at close rangeC.if you observe both sidelights of a vessel ahead for an extended period of timeD.All of the above
材料：At 1100 UTC on 28 May 2003，the container vessel PO Nedlloyd Vespucci and the yacht Wahkuna collided in the English Channel in poor visibility．Each vessel had detected the other by radar when at a range of about 6 miles．The container ship was on a course of 255°（T）at a speed of 25 knots．The yacht was on the port bow of the container ship on a course of 012°（C）at a speed of 7.5 knots，and was due to pass about 8 cables ahead of the container ship．The skipper of the yacht，however，incorrectly estimated from his radar display that PO Nedlloyd Vespucci was passing 1.5 miles ahead of Wahkuna，and reduced speed by disengaging his engine．This action，which also resulted in a substantial alteration in the yachts heading as it lost steerage，put the two vessels on a collision course．The actions of the yacht，the CPA of which now appeared as 2 cables to port on ARPA，concerned and confused the master of PO Nedlloyd Vespucci，but he was reluctant to take any manoeuvring action because he was uncertain of what the yacht would do next．Minutes later，the vessels collided and the bulbous bow of PO Nedlloyd Vespucci struck the forward part of Wahkunas hull，demolishing the first 3m of her hull and dismasting her．Despite having sent a lookout to the port bridge wing，the master of the container ship was not aware that a collision had occurred，and continued on passage．The yacht crew had to abandon to a liferaft，where they stayed for 5.5 hours before being rescued.问题：In the situation referred to in this massage，the speed of PO Nedlloyd Vespucci ________．A.was too fastB.was too slowC.was a safe oneD.could not be determined if safe or notThe bridge resource management on board P&O Nedlloyd Vespucci ________．A.was efficientB.was poorC.was too strict comparing with other shipsD.could not be determined if efficient or poorIt can be concluded that ________ failed to keep an effective radar lookout．A.P&O Nedlloyd VespucciB.WahkunaC.both P&O Nedlloyd Vespucci and WahkunaD.neither P&O Nedlloyd Vespucci nor WahkunaIt appears that ________ was not a factor contributing to the collision．A.The inability of the yacht skipper to use radar effectivelyB.Acceptance by the master of the container ship of a small passing distanceC.Over-confidence in the accuracy of ARPA by the master of the container shipD.lack guidance to assist in determining a safe speed in restricted visibility请帮忙给出每个问题的正确答案和分析，谢谢！
A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should ______.A.remain on course and hold speedB.change course and put the stern to the windC.change course to put the wind on either beam and increase speedD.remain on course but slack the speed
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
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 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The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that（）.Arisk of collision existsBthe other vessel will cross ahead of herCthe other vessel is not taking appropriate actionDcollision cannot be avoided by the give-way vessel's maneuver alone
单选题Risk of collision may be deemed to exist（）.Aif the compass bearing of an approaching vessel does not appreciably changeBeven when an appreciable bearing change is evident, particularly when approaching a vessel at close rangeCif you observe both sidelights of a vessel ahead for an extended period of timeDAll of the above
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 steeragewayBA look-out is not required if the radar is onCFog signals are only required when a vessel is detected by radarDThe radar should always be kept on a short-range scale
单选题If you are the stand-on vessel in a crossing situation，you may take action to avoid collision by your maneuver alone. When may this action be taken?（）.AAt any time you feel it is appropriateBOnly when you have reached extremisCWhen you determine that your present course will cross ahead of the other vesselDWhen it becomes apparent to you that the give-way vessel is not taking appropriate action
单选题You are in charge of a stand-on vessel in a crossing situation.The other vessel is 1.5 miles to port.You believe that risk of collision exists.You should（）.Atake avoiding action immediately upon determining that risk of collision existsBimmediately sound the danger signalCtake avoiding action only after providing the give-way vessel time to take action ,and determining that her action is not appropriateDhold course and speed until the point of extremis, and then sound the danger signal, taking whatever action will best avert collision
单选题You are aboard the give-way vessel in a crossing situation．What should you NOT do in obeying the Rules（）.ACross ahead of the stand-on vesselBMake a large course change to starboardCSlow your vesselDBack 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When you doubt the existence of risk of collision,（）.Asuch risk shall be deemed to existBSuch risk shall not be deemed to existCYou should keep your course and speedDYou needn‟t take any action to avoid collision with any vessel
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A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should（）.Aremain on course and hold speedBchange course and put the stern to the windCchange course to put the wind on either beam and increase speedDremain on course but slack the speed
单选题A fire is discovered in the bow of your vessel while making way. The wind is from ahead at 35 knots. You should（）.Aremain on course and hold speedBremain on course but slack the speedCchange course to put the wind on either beam and increase speedDchange course and put the stern to the wind
单选题Risk of collision may exist（）.Aif the compass bearing of an approaching vessel does not appreciably changeBeven when an appreciable bearing change is evident, particularly when approaching a vessel at close rangeCif you observe both sidelights of a vessel ahead for an extended period of timeDAll of the above
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You are underway in reduced visibility.You hear the fog signal of another vessel about 20° on your starboard bow.Risk of collision may exist.You should（）.Aalter course to starboard to pass around the other vesselBreduce your speed to bare steeragewayCslow your engines and let the other vessel pass ahead of youDalter course to port to pass the other vessel on its portside
单选题If an airplane circles a vessel 3 times，crosses the vessel’s course close ahead while rocking the wings，and heads off in a certain direction，what does this indicate（）.AThe plane is in distress and will have to ditchBThe plane is going to drop a package and wishes the vessel to recover itCSomeone is in distress in that direction and the vessel should follow and assistDThere is danger ahead and the best course is indicated by the direction of the aircraft
单选题Any alteration of course and／or speed to avoid collision shall，if the circumstances of the case admit，（）to another vessel observing visually or by radar.Abe large enough to be readily apparentBbe a succession of small alterationsCbe with due regard to the power and speed of the vesselDleave sufficient room for the other vessel to take action
单选题A head-on situation at night is one in which you see（）.Aone sidelight of a vessel ahead of youBone sidelight and a masthead light of a vessel ahead of youCone sidelight，a masthead light，and a range light of a vessel ahead of youDboth sidelights of a vessel dead ahead of you
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At night，if you see a vessel ahead displaying the lights shown you should（）.Aprovide assistance as the vessel is in distressBstay clear as the vessel is transferring dangerous cargoCstay clear as the vessel is fishingDchange course to the right as the vessel is crossing your bow