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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制丝生产设备流程特点均为单机线性连机、上下流程控制;以()为生产段落和端点。
党章指出,党的基层组织是党在()中的战斗堡垒,是党的全部工作和战斗力的基础。
A. 社会组织结构
B. 社会政治生活
C. 社会基层组织
大型低速柴油机的气缸壁与活塞采用()润滑。
A. 飞溅
B. 压力
C. 给油器压油
D. 人工定期
必须熟练掌握张拉工艺流程,严格按照张拉顺序进行操作,严禁出现()、()现象。