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单选题
A vessel not under command sounds the same fog signal as a vessel（）.
A
towing
B
constrained by her draft
C
under sail
D
All of the above
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On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a ______.A.vessel being towedB.fishing vessel engaged in trawlingC.vessel at anchor warning you of her locationD.power-driven pilot vessel on station underway
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Concerning the identification signal for a pilot vessel, in fog, which statement is TRUE?___.A.When at anchor, the pilot vessel is only required to sound anchor signalsB.The identification signal must be sounded any time the pilot vessel is underwayC.The pilot vessel may only sound the identity signal when making wayD.All of the above
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Continuous sounding of a fog whistle by a vessel is a signal ______.A.that the vessel is anchoredB.to request the draw span of a bridge to be openedC.of distressD.that the vessel is broken down and drifting
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If practical, when shall a manned vessel being towed sound her fog signal?______.A.Immediately before the towing vessel sounds hersB.Immediately after the towing vessel sounds hers.C.As close to the mid-cycle of the towing vessel’s signals as possibleD.At any time as long as the interval is correct
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When the drilling rig enters the fogC
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单选题Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another（）.A
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The vessel which has the other on her own port sideC
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单选题A vessel is in sight of another vessel when she（）.A
can be observed by radarB
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单选题While underway，in fog，you hear a whistle signal of one prolonged blast followed by two short blasts. This signal is sounded by a vessel（）.A
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单选题A distress signal（）.A
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单选题A fishing vessel is approaching a vessel not under command. Which statement is TRUE? （）A
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单选题A vessel constrained by her draft may display（）.A
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the same lights as a vessel restricted in her ability to maneuverC
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the lights for a power-driven vessel which is not under command
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单选题In restricted visibility a towed vessel must sound a fog signal when it is（）.A
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manned，regardless of its position in the towD
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单选题All fog signals shall be sounded every two minutes with the exception of a vessel（）.A
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单选题Approaching an anchorage in fog，you hear one short，one prolonged，and one short blast in that sequence on a ship’s whistle． This indicates（）.A
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单选题A continuous sounding of a fog-signal apparatus indicates（）.A
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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
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in distressC
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单选题A vessel sounds one short blast. This signal indicates the vessel（）.A
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单选题A vessel is “in sight” of another vessel when（）.A
she can be observed by radarB
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单选题A 95-meter vessel aground sounds which fog signal? （）A
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A rapid ringing of a bell for 5 seconds，preceded and followed by three separate and distinct strokes on the bell
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单选题Which statement concerning maneuvering in restricted visibility is FALSE?（）.A
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A vessel which hears a fog signal forward of her beam shall stop her enginesC
A vessel which hears a fog signal forward of the beam shall navigate with cautionD
If a vessel determines by radar that a close-quarters situation is developing，she shall take avoiding action in ample time
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单选题A 200-meter vessel is aground in fog. Which signal is optional? （）A
A bell signalB
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All of the above
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单选题A vessel engaged in fishing underway sounds the same fog signal as a（）.A
power-driven vessel stopped and making no way through the waterB
vessel being towedC
vessel restricted in her ability to maneuver at anchorD
sailing vessel at anchor
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