单选题While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?（）AManually trip the over-speed deviceBInterrupt the fuel flow to the engineCDisengage the safety interlockDSlide the camshaft to the neutral position
单选题
While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?（）
A
Manually trip the over-speed device
B
Interrupt the fuel flow to the engine
C
Disengage the safety interlock
D
Slide the camshaft to the neutral position
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