单项选择题
A.keep the propeller from being fouled B.increase propeller speed C.help calm the waves in the vicinity of the craft D.increase the holding power of the sea anchor
On a vessel，if someone fell overboard and you did not k...
单项选择题On a vessel，if someone fell overboard and you did not know over which side the person fell，you should（）.
A.immediately reverse the engines B.stop the propellers from turning and throw a ring buoy over the side C.increase speed to full to get the vessel away from the person D.first put the rudder hard over in either direction
On a ship，a fire pump may be used for other purposes if...
单项选择题On a ship，a fire pump may be used for other purposes if（）.
A.the other services are run off a reducing station with a pressure gage B.a separate fire pump is available for use on the fire main C.all other services are operated by a manifold near the pump D.All of the above
On a rigid liferaft which is equipped with all of the r...
单项选择题On a rigid liferaft which is equipped with all of the required equipment you may NOT find a（）.
A.boathook B.fishing kit C.lifeline or grab rail D.sea painter
