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单选题
A power-driven vessel not under command at night must show her sidelights when（）.
A
making headway
B
making no headway
C
moored to a buoy
D
at anchor
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A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and ______.A.one sidelight and the masthead light are visibleB.the vessels will pass closer than half a mileC.both vessels sound one prolonged blastD.both sidelights and masthead light(s) are visible
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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
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考题
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
考题
A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of ______．A.A vessel towing by pushing aheadB.A power-driven vessel，not towingC.A barge being pushed aheadD.Either answer A or answer B
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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
单选题A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of（）.A
a vessel towing by pushing aheadB
a power-driven vessel，not towingC
a barge being pushed aheadD
either answer A or answer B
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
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考题
单选题During a stability test on a small passenger vessel（）.A
the vessel must be moored snuglyB
each tank must be partially full to show it does not leakC
all dunnage，tools，and extraneous items are securedD
water under vessel must be deep enough to prevent grounding
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
考题
单选题A vessel not under command making way at night would show（）.A
two all-round red lights in a vertical lineB
anchor lights and sidelightsC
two all-round white lights in a vertical line，sidelights and a stern lightD
two all-round red lights in a vertical line，sidelights，and a stern light
考题
单选题A vessel，which does not normally engage in towing operations，is towing a vessel in distress.She（）.A
need not show the lights for a vessel engaged in towing，if it is impractical to do soB
may show the lights for a vessel not under commandC
must show a yellow light above the stern lightD
must show the lights for a vessel towing
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Power-driven vessels must keep out of the way of sailing vessels except（）.A
in a crossing situationB
when they are making more speed than the power-driven vesselC
when the sailing vessel is overtakingD
on the Inland Waters of the United States
考题
单选题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
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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
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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Which vessel when anchored at night，would not be required to show anchor lights? （）A
A vessel engaged in underwater operationsB
A vessel engaged in mine clearanceC
A vessel engaged on pilotage dutyD
A vessel engaged in survey operations
考题
单选题A vessel engaged in replenishment or transferring persons，provisions or cargo while under way can be regarded as（）.A
a vessel restricted in her ability to maneuverB
a vessel engaged in laying，serving or picking up a navigation mark，submarine cable or pipelineC
a vessel not under commandD
a power-driven vessel
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
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a vessel propelled by machinery and under sail
考题
单选题A vessel being towed astern shall show at night（）.A
the lights required for a power-driven vessel underwayB
only the required masthead lightsC
a sternlight onlyD
sidelights and a sternlight
考题
单选题Which statement correctly applies to a situation where a sailing vessel is overtaking a power-driven vessel（）.A
The power-driven vessel must keep out of the way of the sailing vesselB
A special circumstance situation existsC
The sailing vessel must keep out of the way of the power- driven vesselD
The vessel which has the other vessel to the right must keep out of the way
考题
单选题Which vessel，when anchored at night，is NOT required to show anchor lights?（）.A
A power-driven vesselB
A vessel engaged on pilotage dutyC
A vessel dredgingD
A vessel restricted in her ability to maneuver
考题
单选题A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and （）.A
one sidelight and the masthead light are visibleB
the vessels will pass closer than half a mileC
both vessels sound one prolonged blastD
both sidelights and masthead light(s) are visible
考题
单选题A vessel aground at night is required to show two red lights in a vertical line as well as （）.A
not under command lightsB
restricted in her ability to maneuver lightsC
anchor lightsD
sidelights and a sternlight
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