Which of the following will take place if the clearance of the main bearings are excessive?（）<br>A:bearing knocks<br>B:dropping of pressure of LO<br>C:noises<br>D:all the above

Which of the following will take place if the clearance of the main bearings are excessive?（）
A:bearing knocks
B:dropping of pressure of LO
C:noises
D:all the above

出自：海船船员证

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