单选题A vessel has been equipped with an oil lubricated stern bearing and is undergoing a routine dry-dock.Which of the following inspection should be made when the tail-shaft has been drawn?（）AThe overall condition of the bearing surface should be examinedBThe shaft liner should be inspected for cracks and tested to insure a tight fitCThe stern tube should be tested for cracks with dye penetrantDall of above
单选题
A vessel has been equipped with an oil lubricated stern bearing and is undergoing a routine dry-dock.Which of the following inspection should be made when the tail-shaft has been drawn?（）
A
The overall condition of the bearing surface should be examined
B
The shaft liner should be inspected for cracks and tested to insure a tight fit
C
The stern tube should be tested for cracks with dye penetrant
D
all of above
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