A survey (special purpose mark) buoy ______.A.must be lightedB.may have a flashing red lightC.may have a fixed white lightD.None of the above
A survey (special purpose mark) buoy ______.
A.must be lighted
B.may have a flashing red light
C.may have a fixed white light
D.None of the above
相关考题：
On a chart, the characteristic of the light on a lighthouse is shown as flashing white with a red sector. The red sector ______.A.indicates the limits of the navigable channelB.indicates a danger areaC.is used to identify the characteristics of the lightD.serves no significant purpose
Restricted areas at locks and dams are indicated by ______.A.flashing red lights upstream and fixed red lights downstremB.yellow unlighted buoysC.signs and / or flashing red lightsD.red daymarks upstream and green daymarks downstream
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
You are entering an east coast port and see a buoy with a yellow triangle painted on it．This indicates ______．A.you are in the vicinity of the ICWB.the buoy is a special markC.the buoy is off stationD.the buoy designates a sharp turn in the channel
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 green pillar lightbuoy，Fl(2) 5s，is to be substituted for the red conical lightbuoy Close S.W．of the stranded wreck．The above sentence mainly refers to______．A.a red buoy is to be replaced by a green buoyB.a green buoy is to be replaced by a red buoyC.either a red buoy or a green buoy is to be replacedD.neither a red buy nor a green buoy is to be replaced
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
单选题At 1920，the buoy forward of your starboard beam is（）.Aan interrupted quick flashing buoyBHog Island Lighted Bell BuoyCSouth Light BuoyDSand Shoal Inlet Lighted Buoy A
单选题A buoy，being a shape of cylinder and with red group flashing，shows that it is（）.Aleft-side buoyBright-side buoyCa buoy of safetyDa buoy of danger
单选题A survey (special purpose mark) buoy（）.Amust be lightedBmay have a flashing red lightCmay have a fixed white lightDNone of the above
单选题A buoy with a composite group-flashing light indicates a(n)（）.AbifurcationBfish net areaCanchorage areaDdredging area
单选题You are entering an east coast port and see a buoy with a yellow triangle painted on it.This indicates（）.Ayou are in the vicinity of the ICWBthe buoy is a special markCthe buoy is off stationDthe buoy designates a sharp turn in the channel
单选题When using a buoy as an aid to navigation which of the following should be considered?（）AThe buoy should be considered to always be in the charted locationBIf the light is flashing，the buoy should be considered to be in the charted locationCThe buoy may not be in the charted positionDThe buoy should be considered to be in the charted position if it has been freshly painted
单选题A buoy having red and green horizontal bands would have a light characteristic of（）.Agroup occultingBcomposite group flashingCMorse letter ADquick flashing
单选题A lighted preferred-channel buoy may show a（）.Afixed red lightBMorse (A) white lightCcomposite group-flashing lightDyellow light
单选题A special purpose buoy shall be（）.Alighted with a white lightBstriped black and redClighted with a red lightDyellow
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A lateral system buoy displaying a quick light（）.Ashould be passed close aboard on either sideBindicates that special caution is requiredCis used at a channel bifurcation or junctionDis painted with red and white vertical stripes
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How is a safe water mark，that can be passed close aboard on either side，painted and lighted?（）ABlack and white stripes with an interrupted quick flashing lightBBlack and red stripes with a Morse (A) lightCBlack and red stripes with an interrupted quick flashing lightDRed and white stripes with a Morse (A) light
单选题A special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）AFlashingBMorse ACEqual intervalDOcculting
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A large navigational buoy (LNB) is painted（）.AredByellowCwith red and white vertical stripesDwith a distinct color and pattern unique to each buoy
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