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单选题
masthead light（）
A
桅灯
B
右舷灯
C
尾灯
D
探照灯
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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)
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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
考题
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.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 is overtaking when she can see which light(s) of a vessel ahead?A.Only the stern light of the vesselB.One sidelight and a masthead light of the vesselC.Only a sidelight of the vesselD.The masthead lights of the vessel
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 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
An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead ?______.A.Masthead lights and sidelightsB.One sidelight, the masthead lights and stern-lightC.Both sidelightsD.Stern-light
考题
单选题You are on a vessel that cannot comply with the spacing requirement for masthead lights.What is required in this situation（）.A
The vessel must carry only the lights that comply with the rules; the others may be omittedB
The vessel's lights must comply as closely as possible，as determined by her governmentC
The vessel must be altered to permit full compliance with the rulesD
An all-round light should be substituted for the after masthead light and the stern light
考题
单选题The towing light is a(n)（）.A
flashing amber lightB
yellow light with the same characteristics as the sternlightC
all-round yellow lightD
yellow light with the same characteristics as the masthead light
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
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
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
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Two vessels are in an overtaking situation.Which of the lights on the overtaken vessel will the overtaking vessel see（）.A
Two masthead lightsB
One masthead light and a sidelightC
Both sidelightsD
Stern light only
考题
单选题A single vessel being towed alongside shall exhibit（）.A
one all-round white lightB
sidelights and a sternlightC
only the outboard sidelight and a sternlightD
a masthead light，sidelights，and a sternlight
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
stop enginesB
hold course and speedC
alter course to portD
sound the danger signal
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 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
单选题A vessel being towed will show（）.A
a forward masthead lightB
sidelights and a sternlightC
a towing lightD
All of the above
考题
单选题An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead?（）A
Masthead lights and sidelightsB
One sidelight，the masthead lights and stern lightC
Both sidelightsD
Stern light
考题
单选题A vessel shall be deemed to be overtaking when she can see at night（）.A
only the sternlight of the vesselB
a sidelight and one masthead light of the vesselC
only a sidelight of the vesselD
any lights except the masthead lights of the vessel
考题
单选题A vessel is overtaking when she can see which light(s) of a vessel ahead?（）A
Only the stern light of the vesselB
One sidelight and a masthead light of the vesselC
Only a sidelight of the vesselD
The masthead lights of the vessel
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
two towing lights in a vertical lineD
two all-round red lights where they can best be seen
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A head-on situation at night is one in which you see（）.A
one sidelight of a vessel ahead of youB
one sidelight and a masthead light of a vessel ahead of youC
one sidelight，a masthead light，and a range light of a vessel ahead of youD
both sidelights of a vessel dead ahead of you
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 shall be deemed to be overtaking when she can see at night（）.A
only the sternlight of the vesselB
a sidelight and one masthead light of a vesselC
only a sidelight of the vesselD
any light except the masthead lights of the vessel
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