单选题MARPOL公约附则Ⅵ规定,船上使用的任何燃油含硫量的质量分数不应超过()。A1.5%B2.5%C3.5%D4.5%
单选题
MARPOL公约附则Ⅵ规定,船上使用的任何燃油含硫量的质量分数不应超过()。
A
1.5%
B
2.5%
C
3.5%
D
4.5%
参考解析
解析:
暂无解析
相关考题:
单选题关于金属表面层的结构,下列说法正确的是()。A表面层自表向里依次为污染层,吸附气体层,氧化层和加工硬化层B表面层自表向里依次为吸附气体层,污染层,氧化层和加工硬化层C表面层自表向里依次为吸附气体层,氧化层,污染层和加工硬化层D表面层自表向里依沈为氧化层,污染层,吸附气体层和加工硬化层
单选题An advantage of a helical gear pump over a simple gear pump is that the helical gear pump is capable of ().Amaintaining a steadier speedBdelivering liquids over greater distancesCoperating for longer periods of timeDproducing a smoother discharge flow
单选题The owners of the S.S. Short Haul agree to a charter with the Longsplice Steamship Company. The owners stipulate in the charter party that the regular Master must be employed as the vessel’s Master for the entire life of the contract. Which charter has be ().ABareboatBLeaseCTimeDVoyage
单选题When the follower is on the base circle of the cam, the pump plunger is at the () of its stroke.AtopBmiddleCbottomDany of the above
单选题起锚时锚机的操作程序是()。 ①通知机舱送电,供锚链水; ②锚机加润滑油,空车正反转试验; ③确认正常合上离合器,打开制链器和刹车带,让锚机受力; ④工作完毕报告驾驶台。A①②③对B②③④对C①③④对D①②③④对
单选题关于锅炉水位计的下列说法中,正确的是()。A水管锅炉的最低危险水位应高出最高受热面不少于100mmB水管锅炉水位计最低显示位置应低于最低危险水位以下50mmC锅炉2只水位计中1只损坏应立即熄火D设计压力高于0.78MPa的锅炉水位计是平板玻璃式
单选题The most likely location for a liquid cargo fire to occur on a tanker would be().Ain the midships houseBat the main deck manifoldCat the vent headerDin the pumproom
单选题液压马达与电动机相比,所具有的优点包括()。A对环境温度适应性强B便于带负荷启动C可实现精确的传动比D维护更方便