轮机英语【轮机长】题库 单选题 1分 An oxygen indicator will detect ________. A. the amount of oxygen in a space B. the presence of harmful amounts of carbon monoxide C. concentrations of explosive gas D. all of the above 点击查看答案 进入题库练习 参考答案: A 参考解析: 氧气指示仪可检测空气中的氧气含量 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 Which is false about engine trials? A. Engine trials should be done after finish the operation of turning the engine with the turning gear and starting the engine on air briefly. B. In the operation of engine trials, the main engine should be running in low-speed. C. As to the ship equipped with twin main engine, engine trials should be done with one engine ahead and another engine astem at the same time. D. The order “engine trials” should be given by the bridge. 点击查看答案