A buoy having red and green horizontal bands would have a light characteristic of ______.A.group occultingB.composite group flashingC.Morse letter AD.quick flashing
A buoy having red and green horizontal bands would have a light characteristic of ______.
A.group occulting
B.composite group flashing
C.Morse letter A
D.quick flashing
相关考题：
A list man would expect to see any of the following light signals EXCEPT ______.A.two red lightsB.one green lightC.one white lightD.one amber light
A green buoy has a yellow triangle on it. This is a(n) ______.A.information or regulatory buoy that has lateral significanceB.buoy that is off-station and is marked to warn mariners of its wrong positionC.dual purpose marking used where the ICW and other waterways coincideD.buoy that was set in error and will be replaced with a red nun buoy
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
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Please light the pilot lamp.（）up and （） down. （）A、White；redB、Red； whiteC、Red； greenD、Green ；red
单选题When entering from seaward，a buoy displaying a single-flashing red light would indicate （）.Aa junction with the preferred channel to the leftBa sharp turn in the channel to the rightCthe starboard side of the channelDa wreck to be left on the vessel's port side
单选题A preferred-channel buoy will show a（）.Awhite light whose characteristic is Morse (A)Bgroup-occulting white lightCcomposite group-flashing (2 + 1) white lightDcomposite group-flashing (2 + 1) red or green light
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单选题A lighted preferred-channel buoy may show a（）.Afixed red lightBMorse (A) white lightCcomposite group-flashing lightDyellow light
单选题What is the light characteristic of a lighted，preferred-channel buoy? （）AGroup flashingBComposite group flashingCInterrupted quick flashingDFixed and flashing
单选题A mid-channel buoy，if lighted，will show a（）.Afixed red lightBMorse (A) white lightCgreen lightDflashing red light
单选题A buoy marking a wreck will show a(n)（）.Awhite light FL (2) and a topmark of 2 black spheresBocculting green light and may be letteredCyellow light and will be numberedDcontinuous quick white light and may be numbered
单选题A vessel trawling will display a（）.Ared light over a white lightBgreen light over a white lightCyellow light over a red lightDwhite light over a green light
单选题You are underway and pass by a lighthouse. Its light，which was white since you first sighted it，changes to red. This means（）.Athe light is characterized as alternately flashingBthe lighthouse has lost power and has switched to emergency lightingCit is the identifying light characteristic of the lighthouseDyou have entered an area of shoal water or other hazard
单选题What indicates a dual purpose buoy? （）ARed buoy with a horizontal yellow bandBRed and white vertically-striped buoy with a vertical yellow stripeCRed and white vertically-striped buoy with a red spherical topmarkDGreen buoy with a yellow square
单选题Two navigational hazards are located near to each other，but each is marked by an individual cardinal buoyage system. The buoys of one cardinal system may be identified from the other system by（）.Athe differing light colorsBone system having odd numbers while the other system has even numbersCone system using horizontal bands while the other system uses vertical stripesDthe difference in the periods of the light
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 green buoy has a yellow triangle on it. This is a(n)（）.Ainformation or regulatory buoy that has lateral significanceBbuoy that is off-station and is marked to warn mariners of its wrong positionCdual purpose marking used where the ICW and other waterways coincideDbuoy that was set in error and will be replaced with a red nun buoy
单选题A mooring buoy，if lighted，shows which color light?（）AYellowBWhiteCBlueDAny color except red or green
单选题On a chart，the characteristic of the light on a lighthouse is shown as flashing white with a red sector.The red sector（）.AIndicates the limits of the navigable channelBIndicates a danger areaCIs used to identify the characteristics of the lightDServes no significant purpose
单选题The four standard light colors used for lighted aids to navigation are red，green，white，and （）.ApurpleBorangeCblueDyellow
单选题A list man would expect to see any of the following light signals except （）.Atwo red lightsBone green lightCone white lightDone amber light
单选题A yellow buoy may exhibit a(n)（）.Afixed red lightBflashing lightCwhite lightDocculting light
单选题When making landfall at night，you can determine if a light is a major light or an offshore buoy by（）.Athe intensity of the lightBchecking the period and characteristics against the Light ListCthe color，because the buoy will have only a red or a green lightDAny of the above can be used to identify the light
单选题Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）AA safe-water buoy will display red and white vertical stripes of reflective materialBAll reflective material is white because it is the most visible at nightCA special-purpose mark will display either red or green reflective material to agree with its shapeDA preferred-channel buoy displays either red or green reflective material to agree with the top band of color