The test of a towing vessel’s steering gear control system includes each item EXCEPT（）.<br>A:a test from the alternative power supply，if installed<br>B:timing the movement of the rudder from hard over to hard over<br>C:verification that the rudder angle indicator shows the actual position of the rudder(s)<br>D:visual inspection of the steering linkage

The test of a towing vessel’s steering gear control system includes each item EXCEPT（）.
A:a test from the alternative power supply，if installed
B:timing the movement of the rudder from hard over to hard over
C:verification that the rudder angle indicator shows the actual position of the rudder(s)
D:visual inspection of the steering linkage

出自：海船船员证

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