A light used to signal passing intentions must be an ______.A.all-round yellow light onlyB.all-round white light onlyC.all-round blue light onlyD.alternating red and yellow light
A light used to signal passing intentions must be an ______.
A.all-round yellow light only
B.all-round white light only
C.all-round blue light only
D.alternating red and yellow light
相关考题：
A list signal of one white light indicates that the vessel is ______.A.on an even keelB.listing about 1° to the side the light is displayed onC.listing over 5°With the light displayed on the high sideD.listing，and the chutes should be directed to the side where the light is displayed
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
A towing light is ______.A.shown below the stern lightB.white in colorC.displayed at the mastheadD.a yellow light having the same characteristics as the stern light
A vessel may use any sound or light signals to attract the attention of another vessel as long as ______.A.white lights are not usedB.red and green lights are not usedC.the signal cannot be mistaken for a signal authorized by the RulesD.the vessel signals such intentions over the radiotelephone
A vessel trawling will display a ______.A.red light over a white lightB.green light over a white lightC.yellow light over a red lightD.white light over a green light
A buoy marking a wreck will show a(an) ______.A.white light FL (2) and a topmark of 2 black spheresB.occulting green light and may be letteredC.yellow light and will be numberedD.continuous quick white light and may be numbered
单选题The Coordinator Surface Search（CSS）in a SAR situation should display by night（）.ADeck lights forward and aftBA white light over two red lightsCA red light，white light，and blue light in a vertical lineDA distinctive signal promulgated by the CSS
单选题A towing light is（）.Ashown below the stern lightBwhite in colorCdisplayed at the mastheadDa yellow light having the same characteristics as the stern light
单选题As defined in the Rules，a towing light is a yellow light having the same characteristics as a(n)（）.Amasthead lightBall-round lightCsidelightDsternlight
单选题A vessel showing a yellow light over a white light at night is a vessel（）.Aengaged in pilotingBtowing asternCengaged in fishingDin distress
单选题The towing light is a(n)（）.Aflashing amber lightByellow light with the same characteristics as the sternlightCall-round yellow lightDyellow light with the same characteristics as the masthead light
单选题A flashing light is a light that（）.Aflashes at regular intervals at a frequency of 120 flashes or more per minuteBis yellow in colorCis visible over an arc of the horizon of not less than 180°nor more than 225°DAll of the above
单选题A towing light is a yellow light having the same characteristics as a(n)（）Aspecial flashing lightBanchor lightCsternlightDmasthead light
单选题A vessel may use any sound or light signals to attract the attention of another vessel as long as（）.Awhite lights are not usedBred and green lights are not usedCthe signal cannot be mistaken for a signal authorized by the RulesDthe vessel signals such intentions over the radiotelephone
单选题Which statement is TRUE concerning the danger signal?（）.AWhen any vessel fails to understand the intentions of an approaching vessel she must sound the danger signalBOnly the stand-on vessel can sound the danger signalCDistress signals may be used in place of the danger signalDThe danger signal consists of 4 or more short blasts of the whistle
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 list signal of one white light indicates that the vessel is （）.Aon an even keelBlisting about 1° to the side the light is displayed onClisting over 5° With the light displayed on the high sideDlisting，and the chutes should be directed to the side where the light is displayed
单选题Lighted white and orange buoys must show which color light?（）AOrangeBWhiteCRedDAlternating yellow and white
单选题You have berthed in a area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?（）.AA flashing yellow lightBA red light visible all around the horizonCA green light visible all around the horizonDAn illuminated red and yellow caution flag
单选题A yellow buoy may exhibit a(n)（）.Afixed red lightBflashing lightCwhite lightDocculting light
单选题An alternating light（）.Ashows a light with varying lengths of the lighted periodBshows a light that changes colorCmarks an alternate lesser-used channelDis used as a replacement for another light
单选题A light used to signal passing intentions must be an（）.Aalternating red and yellow lightBalternating white and yellow lightCall-round white or yellow lightDall-round white light only
单选题A light used to signal passing intentions must be an （）.Aall-round yellow light onlyBall-round white light onlyCall-round blue light onlyDalternating red and yellow light
单选题A towing light is（）.Ashown below the sternlightBwhite in colorCdisplayed at the mastheadDa yellow light having the same characteristics as the stern light