A、10 minutes
B、1 minute
C、1 hour
D、3 minutes
更多“When a vessel signals her distress by means of a gun or other explosive signal，the firing should be at intervals of approximately（）.”相关的问题
A、When at anchor，the pilot vessel is only required to sound anchor signals B、The identification signal must be sounded any time the pilot vessel is underway C、The pilot vessel may only sound the identity signal when making way D、All of the above
A、A.When any vessel fails to understand the intentions of an approaching vessel she must sound the danger signal B、B.Only the stand-on vessel can sound the danger signal C、C.Distress signals may be used in place of the danger signal D、D.The danger signal consists of 4 or more short blasts of the whistle
A、When the towing vessel enters the fog B、When the drilling rig enters the fog C、When the towing vessel can no longer be seen from the rig D、Immediately
A、can be observed by radar B、has determined that risk of collision exists C、is sounding a fog signal which can be heard on the other vessel D、can be observed visually from the other vessel
A、vessel towing astern B、barge pushed ahead C、vessel towing astern only when the length of her tow exceeds 200 meters D、this signal does not exist in international waters
A、replaces directional signals B、makes the other vessel the stand-on vessel C、indicates doubt as to another vessels actions D、is the same as a MAYDAY signal
A、white lights are not used B、red and green lights are not used C、the signal cannot be mistaken for a signal authorized by the Rules D、the vessel signals such intentions over the radiotelephone
A、she can be observed by radar B、she can be observed visually from the other vessel C、she can be plotted on radar well enough to determine her heading D、her fog signal can be heard
A、she can be observed by radar B、she can be observed visually from the other vessel C、she can be plotted on radar well enough to determine her heading D、her fog signal can be heard
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