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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
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更多 “ 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 ” 相关考题
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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
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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
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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
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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
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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
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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
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单选题When entering from seaward，a buoy displaying a single-flashing red light would indicate （）.A
a junction with the preferred channel to the leftB
a sharp turn in the channel to the rightC
the starboard side of the channelD
a wreck to be left on the vessel's port side
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单选题A preferred-channel buoy will show a（）.A
white light whose characteristic is Morse (A)B
group-occulting white lightC
composite group-flashing (2 + 1) white lightD
composite group-flashing (2 + 1) red or green light
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单选题At 1920，the buoy forward of your starboard beam is（）.A
an interrupted quick flashing buoyB
Hog Island Lighted Bell BuoyC
South Light BuoyD
Sand Shoal Inlet Lighted Buoy A
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单选题A buoy，being a shape of cylinder and with red group flashing，shows that it is（）.A
left-side buoyB
right-side buoyC
a buoy of safetyD
a buoy of danger
考题
单选题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
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单选题A buoy with a composite group-flashing light indicates a(n)（）.A
bifurcationB
fish net areaC
anchorage areaD
dredging area
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单选题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
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单选题When using a buoy as an aid to navigation which of the following should be considered?（）A
The buoy should be considered to always be in the charted locationB
If the light is flashing，the buoy should be considered to be in the charted locationC
The buoy may not be in the charted positionD
The buoy should be considered to be in the charted position if it has been freshly painted
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单选题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
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单选题A lighted preferred-channel buoy may show a（）.A
fixed red lightB
Morse (A) white lightC
composite group-flashing lightD
yellow light
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单选题A special purpose buoy shall be（）.A
lighted with a white lightB
striped black and redC
lighted with a red lightD
yellow
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单选题What indicates a dual purpose buoy? （）A
Red buoy with a horizontal yellow bandB
Red and white vertically-striped buoy with a vertical yellow stripeC
Red and white vertically-striped buoy with a red spherical topmarkD
Green buoy with a yellow square
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单选题A lateral system buoy displaying a quick light（）.A
should be passed close aboard on either sideB
indicates that special caution is requiredC
is used at a channel bifurcation or junctionD
is painted with red and white vertical stripes
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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?（）.A
A flashing yellow lightB
A red light visible all around the horizonC
A green light visible all around the horizonD
An illuminated red and yellow caution flag
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单选题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
考题
单选题How is a safe water mark，that can be passed close aboard on either side，painted and lighted?（）A
Black and white stripes with an interrupted quick flashing lightB
Black and red stripes with a Morse (A) lightC
Black and red stripes with an interrupted quick flashing lightD
Red and white stripes with a Morse (A) light
考题
单选题A special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）A
FlashingB
Morse AC
Equal intervalD
Occulting
考题
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（）.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
考题
单选题A large navigational buoy (LNB) is painted（）.A
redB
yellowC
with red and white vertical stripesD
with a distinct color and pattern unique to each buoy
考题
单选题When making landfall at night，you can determine if a light is a major light or an offshore buoy by（）.A
the intensity of the lightB
checking the period and characteristics against the Light ListC
the color，because the buoy will have only a red or a green lightD
Any of the above can be used to identify the light
考题
单选题Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）A
A safe-water buoy will display red and white vertical stripes of reflective materialB
All reflective material is white because it is the most visible at nightC
A special-purpose mark will display either red or green reflective material to agree with its shapeD
A preferred-channel buoy displays either red or green reflective material to agree with the top band of color
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