Which of the following statements concerning the l

职业技能鉴定 已帮助: 时间:2024-09-16 19:48:51

Which of the following statements concerning the lubrication of diesel propulsionengines used in vessels over 300 gross tons is most accurate? ( )
A.Lubrication systems using engine driven lube oil pumps do not require any additionalindependent arrangement when such arrangements have been proven reliable.
B.The use of engine driven pre-lube pumps is permitted on vessels with propulsionsystems developing less than 500 shaft horsepower.
C.When forced lubrication is used for propulsion engines , one independently drivenstandby pumps is to be provided in addition to the necessary pumps for normaloperation.
D.Lubrication systems where two oil coolers are fitted require a minimum of twotemperature control devices which may be actuated by similar sensors.

难度:⭐⭐⭐

题库:职业技能鉴定,海船船员,全国海船船员

标签:do,pumps,not

参考解答

用户头像

486***927

2024-09-16 19:48:51

正确答案:C
解析:gross:总的,毛的;accurate:精确的;additional:附加的;independent:独立;arrangement:布置,安排;reliable:可靠的;device:设备;actuate:开动;similar:类似的;sensor:传感器
译文:关于使用在300总吨以上的船舶上的柴油机滑油的陈述下列哪个最准确?如果推进柴油机是强制润滑的,那么除了正常运行必要的那台泵之外,还应该有一台独立驱动的备用泵。

上一篇 不属于冠心病并发症的是:()。A.室壁瘤B.心房纤颤C.乳头肌断裂D.室间隙穿孔E.左心功能不全

下一篇 急性胰腺炎的MRI表现 一般不包括:()。A.胰周脂肪间隙水肿B.胰管扩张C.T1WI T2WI均呈

相似问题