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单选题
A vessel not under command shall display（）.
A
two red lights at night and two black balls during daylight
B
two red lights at night and three black balls during daylight
C
three red lights at night and two black balls during daylight
D
three red lights at night and three black balls during daylight
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If a seaplane is not used as a means of transpiration on water but is capable of being used so，it shall ().A.be regarded as a vessel not under commandB.be regarded as a vessel underwayC.be regarded as a vesselD.be regarded as a sailing vessel
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A vessel not under command shall display ______.A.two red lights at night and two black balls during daylightB.two red lights at night and three black balls during daylightC.three red lights at night and two black balls during daylightD.three red lights at night and three black balls during daylight
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A vessel or object being towed astern shall display a(n) ______.A.forward masthead lightB.after masthead lightC.stern lightD.All of the above
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A vessel sailing shall keep out of the way of all of the following vessels except a vessel ______.A.not under commandB.engaged on pilotage dutyC.restricted in her ability to maneuverD.engaged in fishing
考题
A vessel not under command sounds the same fog signal as a vessel ______.A.engaged in towingB.constrained by her draftC.under sailD.All of the above
考题
A vessel on the high seas that is not under command shall display which of the following day signals? ______A.Two black ballsB.Three black ballsC.Two red ballsD.Three red balls
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In a crossing situation on open waters, a sailing vessel shall keep out of the way of all the following vessels EXCEPT a vessel ______.A.not under commandB.retricted in her ability to maneuverC.engaged in towingD.Fishing
考题
单选题At sea，on what occasion would you display two red lights at night or two black balls during the day?（）.A
When vessel is on fireB
When vessel is not under commandC
When vessel is carrying the dangerous cargoesD
When vessel is restricted in her ability to maneuver
考题
单选题A power-driven vessel underway shall keep out of the way of（）.A
a vessel restricted in her ability to maneuverB
a vessel under commandC
a passenger shipD
a seaplane on the water
考题
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?（）A
By day，she shall carry a black cylinder shapeB
By day，she shall carry two black balls in a vertical lineC
By night，she would show the same lights as a vessel not under commandD
By day，she would show the same shapes as a vessel restricted in her ability to maneuver
考题
单选题A vessel not under command sounds the same fog signal as a vessel（）.A
towingB
constrained by her draftC
under sailD
All of the above
考题
单选题A vessel will NOT show sidelights when（）.A
underway but not making wayB
making way，not under commandC
not under command，not making wayD
trolling underway
考题
单选题The Rules state that a seaplane shall（）.A
not be regarded as a vesselB
in general，keep well clear of all vesselsC
proceed at a slower speed than surrounding vesselsD
when making way，show the lights for a vessel not under command
考题
单选题A vessel towing where the tow prevents her from changing course shall carry（）.A
only the lights for a vessel towingB
only the lights for a vessel restricted in her ability to maneuverC
the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuverD
the lights for a towing vessel and the lights for a vessel not under command
考题
单选题A vessel（）when underway shall so far as possible，keep out of the way of a vessel not under command.A
having engaged in fishingB
engaging in fishingC
engaged in fishD
engaged in fishing
考题
单选题A fishing vessel is approaching a vessel not under command. Which statement is TRUE? （）A
The fishing vessel must keep clear of the vessel not under commandB
If the vessel not under command is a power-driven vessel，she must keep clear of the fishing vesselC
They must exchange whistle signalsD
Both vessels are required to take action to stay clear of each other
考题
单选题A vessel constrained by her draft may display（）.A
three all-round red lights instead of the lights required for a power-driven vessel of her classB
the same lights as a vessel restricted in her ability to maneuverC
three all-round red lights in addition to the lights required for a power-driven vessel of her classD
the lights for a power-driven vessel which is not under command
考题
单选题In a crossing situation on open waters，a sailing vessel shall keep out of the way of all the following vessels EXCEPT a vessel（）.A
not under commandB
restricted in her ability to maneuverC
engaged in towingD
fishing
考题
单选题A vessel sailing shall keep out of the way of all of the following vessels except a vessel （）.A
not under commandB
engaged on pilotage dutyC
restricted in her ability to maneuverD
engaged in fishing
考题
单选题All fog signals shall be sounded every two minutes with the exception of a vessel（）.A
underway or making wayB
under sail or under towC
anchored or agroundD
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考题
单选题A vessel transferring provisions or cargo at sea shall display during the day（）.A
two black balls in a vertical lineB
three black balls in a vertical lineC
three shapes in a vertical line； the highest and lowest shall be red balls and the middle a white diamondD
three black shapes in a vertical line； the highest and lowest shall be balls and the middle one a diamond
考题
单选题A vessel sounding a fog signal of one short，one prolonged，and one short blast is indicating that the vessel is（）.A
fishingB
in distressC
at anchorD
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考题
单选题Which vessel would display a cone，apex downward（）.A
A fishing vessel with outlying gearB
A vessel proceeding under sail and machineryC
A vessel engaged in diving operationsD
A vessel being towed
考题
单选题When a pushing vessel and a vessel being pushed are rigidly connected in a composite unit，they shall be regarded as（）.A
a tugboatB
a sailing vesselC
a power-driven vesselD
a vessel propelled by machinery and under sail
考题
单选题A vessel or object being towed astern shall display a(n)（）.A
forward masthead lightB
after masthead lightC
stern lightD
All of the above
考题
单选题Which statement is TRUE，according to the Rules（）.A
A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuverB
A vessel not under command shall avoid impeding the safe passage of a vessel constrained by her draftC
A vessel constrained by her draft shall keep out of the way of a vessel engaged in fishingD
A vessel engaged in fishing while underway shall，so far as possible，keep out of the way of a vessel restricted in her ability to maneuver
考题
单选题All of the following vessels are “restricted in their ability to maneuver” EXCEPT a vessel （）.A
laying a pipelineB
dredgingC
mineclearingD
not under command
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