轮机英语【大管甲类】题库 单选题 1分 Measure ______by means of lead wire. A. the clearance of the main bearing B. the gap of the main bearing C. the play of the roller bearing D. the tolerance of the main bearing 点击查看答案 进入题库练习 参考答案: A 参考解析: 用压铅丝法来测量主轴承的间隙 你可能感兴趣的试题 1 单选题 1分 Why are we blowing the engine before start (slow turning on air)? A. To be sure that no parts are loose, or that the engine is blocked from rotation B. To get fresh air into cylinders ensuring a safe start of the engine. C. To be sure that all indicator cocks are closed, and no passage into the combustion chamber D. To be sure that we do not have water collected in the cylinders. 点击查看答案 2 单选题 1分 Prior to starting, the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open is to ____. A. test the starting system B. remove condensation from the cylinders C. check the compression D. check for proper lube oil pressure 点击查看答案 3 单选题 1分 The main purpose of starting the diesel engine on air briefly is ____. A. to inspect if the cylinder has the water leakage B. to expel out the residual water/gas/oil from the cylinder C. to check if fuel supply is normal D. A and B. 点击查看答案 4 单选题 1分 ______, it is usually to give the main diesel engine a brief trial on power ahead and astern. A. Before finished with engine B. After finished with engine C. Before “stand-by” is given to the bridge D. After “stand-by” is given to the bridge 点击查看答案 5 单选题 1分 Before “stand-by” is rung on the engine telegraph, it is usual to give the main engine ____ ahead and astern. A. a brief trial with turning gear B. a long trial by steering gear C. a brief trial on power D. one minute’s trial with windlass 点击查看答案