单选题Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or ()Ainside micrometerBfeeler gauge and straight edgeCadjustable trammelDsighting device

单选题
Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or ()
A

inside micrometer

B

feeler gauge and straight edge

C

adjustable trammel

D

sighting device


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When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?A.The propeller hub taper and shaft keyway should be inspected for cracks or corrosionB.The stern bearing alignment with the stern frame should be checkedC.The interior of the stern tube should be inspected for leaksD.The shaft liner should be removed and inspected for cracks

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英译汉:main shaft

Main shaft

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