A.has fired a torpedo during a drill
B.is about to rise to periscope depth
C.is on the bottom in distress
D.is disabled and unable to surface
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A.When any vessel fails to understand the intentions of an approaching vessel she must sound the danger signal
B.Only the stand-on vessel can sound the danger signal
C.Distress signals may be used in place of the danger signal
D.The danger signal consists of 4 or more short blasts of the whistle
A.do
B.to do
C.doing
D.done
最新試題
When will the float-free emergency position indicating radio beacon be activated after abandoning ship?（）
You are the first vessel to arrive at the scene of a distress. Due to the volume of traffic on the radio，you are unable to communicate with the vessel in distress. Which action should you take?（）
Which equipment is the primary source of generating a locating signal?（）
When amendments are made to the Shipboard Oil Pollution Emergency Plan，the revisions must be submitted to the Coast Guard（）.
When should the emergency position-indicating radio beacon be activated after abandoning an OSV?（）
Which action(s) should the operator of a pedestal crane take if crane control is lost?（）
Which statement about transmitting distress messages by radiotelephone is INCORRECT?（）
What is the primary equipment for receiving MSI? （）
What would most likely prevent a SART’s signal from being detected?（）
Which channel and mode should be used when initiating a distress alert transmission?（）