A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE?A.During the day，she would display three balls in a vertical lineB.If making way，she would show masthead lights at nightC.If at anchor，she need not show anchor lights while displaying identifying lightsD.Her fog signal would consist of a rapid ringing of a bell for five seconds every minute
A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE?
A.During the day，she would display three balls in a vertical line
B.If making way，she would show masthead lights at night
C.If at anchor，she need not show anchor lights while displaying identifying lights
D.Her fog signal would consist of a rapid ringing of a bell for five seconds every minute
相关考题：
Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white?A.A vessel engaged in diving operationsB.A pilot vesselC.A vessel trawlingD.All of the above
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A vessel engaged in fishing，and at anchor，shall show ______.A.an anchor lightB.sidelights and a stern lightC.three lights in a vertical line，the highest and lowest being red，and the middle being whiteD.None of the above
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A vessel servicing a pipeline during the day shall display ______.A.three black shapes in a vertical line; the highest and lowest are balls，and the middle one is a diamondB.three shapes in a vertical line; the highest and lowest are red balls，and the middle one is a white diamondC.three black balls in a vertical lineD.two black balls in a vertical line
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单选题A vessel displaying three red lights in a vertical line is（）.Anot under commandBagroundCdredgingDconstrained by her draft
单选题Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white? （）AA vessel engaged in diving operationsBA pilot vesselCA vessel trawlingDAll of the above
单选题A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE? （）ADuring the day，she would display three balls in a vertical lineBIf making way，she would show masthead lights at nightCIf at anchor，she need not show anchor lights while displaying identifying lightsDHer fog signal would consist of a rapid ringing of a bell for five seconds every minute
单选题A vessel towing a barge astern would show，at the stern（）.Aonly a stern lightBa towing light above the stern lightCtwo towing lights in a vertical lineDtwo white lights in a vertical line
单选题By night，you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel，it will be marked by（）.Aa floodlightBtwo red lights in a vertical lineCa single red lightDany visible lights
单选题A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show （）.Athree masthead lights in a vertical line instead of either the forward or after masthead lightBtwo masthead lights in a vertical line instead of either the forward or after masthead lightsCtwo towing lights in a vertical line at the sternDa small white light aft of the funnel
单选题A power-driven vessel pushing aheador towing alongside displays navigation lights and（）.Atwo all-round red lights in a vertical lineBtwo yellow towing lights in a vertical lineCtwo white masthead lights in a vertical lineDtwo lights on the stern，one yellow and one white
单选题A vessel not under command making way at night would show（）.Atwo all-round red lights in a vertical lineBanchor lights and sidelightsCtwo all-round white lights in a vertical line，sidelights and a stern lightDtwo all-round red lights in a vertical line，sidelights，and a stern light
单选题A vessel engaged in fishing，and at anchor，shall show（）.Aan anchor lightBsidelights and a stern lightCthree lights in a vertical line，the highest and lowest being red，and the middle being whiteDNone of the above
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单选题A 20-meter power-driven vessel pushing ahead or towing alongside will display（）.Aa single white light forwardBtwo masthead lights in a vertical lineCtwo towing lights in a vertical lineDtwo all-round red lights where they can best be seen
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单选题A vessel servicing a pipeline during the day shall display（）.Athree black shapes in a vertical line; the highest and lowest are balls，and the middle one is a diamondBthree shapes in a vertical line; the highest and lowest are red balls，and the middle one is a white diamondCthree black balls in a vertical lineDtwo black balls in a vertical line
单选题A vessel transferring provisions or cargo at sea shall display during the day（）.Atwo black balls in a vertical lineBthree black balls in a vertical lineCthree shapes in a vertical line； the highest and lowest shall be red balls and the middle a white diamondDthree black shapes in a vertical line； the highest and lowest shall be balls and the middle one a diamond
单选题An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show? （）AThree lights in a vertical line，the highest and lowest red and the middle white，and anchor lightsBThree lights in a vertical line，the highest and lowest red and the middle white，ONLYCAnchor lights ONLYDAnchor lights and sidelights ONLY
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