A pilot vessel on pilotage duty shall show identity lights ______.A.at any time while underwayB.while at anchorC.while alongside a vesselD.All of the above
A pilot vessel on pilotage duty shall show identity lights ______.
A.at any time while underway
B.while at anchor
C.while alongside a vessel
D.All of the above
相关考题：
A pilot vessel on pilotage duty at night will show sidelights and a sternlight ______.A.when at anchorB.only when making wayC.at any time when underwayD.only when the identifying lights are not being shown
A pilot vessel may continue to sound an identity signal if she is ______.A.underway，but not making wayB.agroundC.being towedD.not engaged in pilotage duty
An anchored vessel on pilotage duty must show which light(s) at night?A.A sternlight onlyB.Anchor lights onlyC.A white light over a red light onlyD.A white light over a red light and anchor lights
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
A partly submerged vessel or object being towed，which is not readily noticeable，shall show ______.A.yellow lights at each endB.two red lights in a vertical lineC.a black ballD.a diamond shape
If the goods shipped are perishable，low cost goods，live animals，deck cargo，etc．，the freight and all related charges shall be paid ______．A.At the time of shipmentB.On vessel's arrivalC.At the time of sailingD.At the time the voyage has been accomplished
A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of ______．A.A vessel towing by pushing aheadB.A power-driven vessel，not towingC.A barge being pushed aheadD.Either answer A or answer B
Concerning the identification signal for a pilot vessel, in fog, which statement is TRUE?___.A.When at anchor, the pilot vessel is only required to sound anchor signalsB.The identification signal must be sounded any time the pilot vessel is underwayC.The pilot vessel may only sound the identity signal when making wayD.All of the above
单选题A pilot vessel may continue to sound an identity signal if she is （）.Aunderway，but not making wayBagroundCbeing towedDnot engaged in pilotage duty
单选题A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of（）.Aa vessel towing by pushing aheadBa power-driven vessel，not towingCa barge being pushed aheadDeither answer A or answer B
单选题Which statement is TRUE concerning a towing vessel which，due to the nature of her work，is unable to keep out of the way of another vessel?（）ABy day，she shall carry a black cylinder shapeBBy day，she shall carry two black balls in a vertical lineCBy night，she would show the same lights as a vessel not under commandDBy day，she would show the same shapes as a vessel restricted in her ability to maneuver
单选题Concerning the identification signal for a pilot vessel，in fog，which statement is TRUE?（）AWhen at anchor，the pilot vessel is only required to sound anchor signalsBThe identification signal must be sounded any time the pilot vessel is underwayCThe pilot vessel may only sound the identity signal when making wayDAll of the above
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 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 vessel，which does not normally engage in towing operations，is towing a vessel in distress.She（）.Aneed not show the lights for a vessel engaged in towing，if it is impractical to do soBmay show the lights for a vessel not under commandCmust show a yellow light above the stern lightDmust show the lights for a vessel towing
单选题A vessel towing where the tow prevents her from changing course shall carry（）.Aonly the lights for a vessel towingBonly the lights for a vessel restricted in her ability to maneuverCthe lights for a towing vessel and the lights for a vessel restricted in her ability to maneuverDthe lights for a towing vessel and the lights for a vessel not under command
单选题A pilot vessel on pilotage duty shall show identity lights （）.Aat any time while underwayBwhile at anchorCwhile alongside a vesselDAll of the above
单选题An anchored vessel on pilotage duty must show which light(s) at night? （）AA sternlight onlyBAnchor lights onlyCA white light over a red light onlyDA white light over a red light and anchor lights
单选题A pilot vessel on pilotage duty at night will show sidelights and a sternlight （）.Awhen at anchorBonly when making wayCat any time when underwayDonly when the identifying lights are not being shown
单选题A vessel enagaged in fishing，and at anchor，shall show（）.Aan anchor lightBsidelights and a sternlightCthree lights in a vertical line，the highest and lowest being red，and the middle being whiteDNone of the above
单选题A power-driven vessel，when towing astern，shall show（）.Atwo towing lights in a vertical lineBa towing light in a vertical line above the sternlightCtwo towing lights in addition to the sternlightDa small white light in lieu of the sternlight
单选题Which vessel when anchored at night，would not be required to show anchor lights? （）AA vessel engaged in underwater operationsBA vessel engaged in mine clearanceCA vessel engaged on pilotage dutyDA vessel engaged in survey operations
单选题A pilot vessel on pilotage duty at night will show sidelights and a stern light （）.Awhen at anchorBonly when making wayCat any time when underwayDonly when the identifying lights are not being shown
单选题An inconspicuous，partly submerged vessel or object being towed，where the length of tow is 100 meters，shall show（）.Ayellow lights at each endBtwo red lights in a vertical lineCa black ballDa diamond shape
单选题A partly submerged vessel or object being towed，which is not readily noticeable，shall show （） .Ayellow lights at each endBtwo red lights in a vertical lineCa black ballDa diamond shape
单选题A vessel being towed astern shall show at night（）.Athe lights required for a power-driven vessel underwayBonly the required masthead lightsCa sternlight onlyDsidelights and a sternlight
单选题Which vessel，when anchored at night，is NOT required to show anchor lights?（）.AA power-driven vesselBA vessel engaged on pilotage dutyCA vessel dredgingDA vessel restricted in her ability to maneuver