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单选题
A vessel towing is showing three forward white masthead lights in a vertical line. This means that the length of the（）.
A
towing vessel is less than 50 meters
B
towing vessel is greater than 50 meters
C
tow is less than 200 meters
D
tow is greater than 200 meters
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考题
A head-on situation at night is one in which you see dead ahead a vessel showing ______.A.one sidelightB.one sidelight and a masthead lightC.one sidelight and two masthead lightsD.both sidelights of a vessel and her masthead light(s)
考题
A single vessel being towed alongside shall exhibit ______.A.one all-round white lightB.sidelights and a stern lightC.only the outboard sidelight and a stern lightD.a masthead light，sidelights，and a stern light
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A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE?A.During the day，she would display three balls in a vertical lineB.If making way，she would show masthead lights at nightC.If at anchor，she need not show anchor lights while displaying identifying lightsD.Her fog signal would consist of a rapid ringing of a bell for five seconds every minute
考题
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
A vessel towing a barge astern would show，at the stern ______.A.only a stern lightB.a towing light above the stern lightC.two towing lights in a vertical lineD.two white lights in a vertical line
考题
A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit ______.A.the masthead lights for a towing vesselB.the lights for a vessel restricted in its ability to maneuverC.sidelights，stern light and towing lightD.All of the above
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At night you observe a vessel ahead show three flashes of a white light. This signal indicates that the vessel ahead is（）.A
in distressB
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考题
单选题A vessel showing a yellow light over a white light at night is a vessel（）.A
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engaged in fishingD
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考题
单选题You see a vessel displaying three lights in a vertical line.The highest and lowest lights are red and the middle light is white.She is also showing a white light at the stern，which is lower than the forward light.It could be a（）.A
Survey vesselB
Vessel not under commandC
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考题
单选题A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE? （）A
During the day，she would display three balls in a vertical lineB
If making way，she would show masthead lights at nightC
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Her fog signal would consist of a rapid ringing of a bell for five seconds every minute
考题
单选题A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.A
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考题
单选题At night，a vessel shall indicate that she is restricted in her ability to maneuver by showing in a vertical line two（）.A
red lightsB
red lights and two white lightsC
red lights with a white light in betweenD
white lights with a red light in between
考题
单选题A vessel towing a barge astern would show，at the stern（）.A
only a stern lightB
a towing light above the stern lightC
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two white lights in a vertical line
考题
单选题A single vessel being towed alongside shall exhibit（）.A
one all-round white lightB
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考题
单选题A vessel showing a green light over a white light in a vertical line above the level of the sidelights is（）.A
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under sail and powerC
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考题
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one all-round white lightB
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考题
单选题You are in charge of a power-driven vessel navigating at night.You sight the red sidelight of another vessel on your port bow.The other vessel’s aft masthead light is to the right of her forward masthead light. You should（）.A
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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
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考题
单选题A power-driven vessel pushing aheador towing alongside displays navigation lights and（）.A
two all-round red lights in a vertical lineB
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考题
单选题A head-on situation at night is one in which you see dead ahead a vessel showing（）.A
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考题
单选题A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.A
the masthead lights for a towing vesselB
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考题
单选题A vessel being towed will show（）.A
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sidelights and a sternlightC
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All of the above
考题
单选题A situation has occurred in which your vessel must be towed. When the towing vessel passes the towing line to you，you should secure the line（）.A
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考题
单选题A 20-meter power-driven vessel pushing ahead or towing alongside will display（）.A
a single white light forwardB
two masthead lights in a vertical lineC
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考题
单选题A power-driven vessel，when towing astern，shall show（）.A
two towing lights in a vertical lineB
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a small white light in lieu of the sternlight
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
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