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单选题
A vessel engaged in trawling will show identification lights of（）.
A
a red light over a white light
B
a white light over a red light
C
a green light over a white light
D
two red lights in a vertical line
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考题
A power-driven fishing vessel is underway on the high seas and is not engaged in fishing． Which of the following factors determines what lights she will show？A.Whether she is normally a fishing or a trawling vesselB.Her gross tonnageC.Her lengthD.The type of gear she carries
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Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white?A.A vessel engaged in diving operationsB.A pilot vesselC.A vessel trawlingD.All of the above
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A fishing vessel displaying the lights shown is ______.A.anchoredB.underway but not fishingC.tending a small fishing boatD.fishing by trawling
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A partly submerged vessel or object being towed，which is not readily noticeable，shall show ______.A.yellow lights at each endB.two red lights in a vertical lineC.a black ballD.a diamond shape
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A vessel displaying three red lights in a vertical line is ______.A.restricted in her ability to maneuverB.not under commandC.engaged in mineclearing operationsD.constrained by her draft
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A vessel engaged in fishing，and at anchor，shall show ______.A.an anchor lightB.sidelights and a stern lightC.three lights in a vertical line，the highest and lowest being red，and the middle being whiteD.None of the above
考题
A vessel showing a green light over a white light in a vertical line above the level of the sidelights is ______.A.engaged in underwater constructionB.under sail and powerC.a pilot vesselD.trawling
考题
At sea you sight two red lights. This would indicate ______.A.A vessel engaged in laying cableB.A vessel not under commandC.A vessel launching and recovering aircraftD.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 towing vessel 30 meters in length is pushing barges ahead. How many white masthead lights is the vessel REQUIRED to show at night?（）A
OneB
TwoC
ThreeD
Four
考题
单选题A fishing vessel displaying the lights shown is（）.A
anchoredB
underway but not fishingC
tending a small fishing boatD
fishing by trawling
考题
单选题Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white? （）A
A vessel engaged in diving operationsB
A pilot vesselC
A vessel trawlingD
All of the above
考题
单选题By night，you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel，it will be marked by（）.A
a floodlightB
two red lights in a vertical lineC
a single red lightD
any visible lights
考题
单选题A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show （）.A
three masthead lights in a vertical line instead of either the forward or after masthead lightB
two masthead lights in a vertical line instead of either the forward or after masthead lightsC
two towing lights in a vertical line at the sternD
a small white light aft of the funnel
考题
单选题A power-driven fishing vessel is underway on the high seas and is not engaged in fishing. Which of the following factors determines what lights she will show?（）.A
Whether she is normally a fishing or a trawling vesselB
Her gross tonnageC
Her lengthD
The type of gear she carries
考题
单选题Two barges are being pushed ahead by a tugboat.Which statement is TRUE concerning lights on the barges（）.A
Each vessel should show sidelightsB
Each vessel should show at least one white lightC
The barges should be lighted as separate unitsD
The barges should be lighted as one vessel
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 engaged in fishing，and at anchor，shall show（）.A
an anchor lightB
sidelights and a stern lightC
three lights in a vertical line，the highest and lowest being red，and the middle being whiteD
None of the above
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 towing vessel and her tow are severely restricted in their ability to change course. When making way，the towing vessel will show ONLY（）.A
the masthead lights for a towing vesselB
the lights for a vessel restricted in her ability to maneuverC
sidelights，stern light，and towing lightD
All of the above
考题
单选题An inconspicuous，partly submerged vessel or object being towed，where the length of tow is 100 meters，shall show（）.A
yellow lights at each endB
two red lights in a vertical lineC
a black ballD
a diamond shape
考题
单选题A partly submerged vessel or object being towed，which is not readily noticeable，shall show （） .A
yellow lights at each endB
two red lights in a vertical lineC
a black ballD
a diamond shape
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An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show? （）A
Three lights in a vertical line，the highest and lowest red and the middle white，and anchor lightsB
Three lights in a vertical line，the highest and lowest red and the middle white，ONLYC
Anchor lights ONLYD
Anchor lights and sidelights ONLY
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If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.A
pushed aheadB
towed alongsideC
towed asternD
Any of the above
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