According to the Robinson Graph, suddenly astern maneuvering of main engine during navigating will cause（）<br>A:rapid reduction of ship’s friction force<br>B:shaft system over mechanical load<br>C:sharp growth of the torque of diesel engine<br>D:propeller torque change along J=0 curve

According to the Robinson Graph, suddenly astern maneuvering of main engine during navigating will cause（）
A:rapid reduction of ship’s friction force
B:shaft system over mechanical load
C:sharp growth of the torque of diesel engine
D:propeller torque change along J=0 curve

出自：海船船员证

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