1.2.4 船舶柴油机润滑系统

轮机英语题库翻译·海大版

1.2.4 船舶柴油机润滑系统

1. Lubrication for the main reduction gears used with diesel engines is usually

supplied by ____.

A.oil from the main engine sump B.an independent(独立的)lube oil system C.the stem beating head tank D.the stern bearing(艉轴承)sump tank 注 在内燃机船上，减速齿轮箱的滑油系统与主机的滑油系统是相互独立的，以避免发动机产生的污染物损害减速齿轮。B

By which of the following types of lubricating oil systems are lubricating oil systems for diesel engine journal bearing usually lubricating ?

A. Splash B. Gravity C. Pressure D. Bypass

注 在滑油系统中柴油机曲轴轴颈轴承（主轴承）为压力润滑。C

* 3. Mechanical lubricators for diesel engine cylinders are usually small reciprocating

pumps which are ____.

A.operated manually once an hour

B.operated until the engine has started

C.placed into operation only at maximum load D.adjustable to meet lubrication requirements

注 柴油机气缸注油器一般都是小型的往复式泵，该泵能调节以满足不同的润滑要求。D

4. The lube oil cooler is located after the lube oil filter in order for ____.

A.the filter to operate more efficiently B.the lube oil cooler to be bypassed

C.positive lube oil pump suction to be assured D.galvanic action(电流作用)in the cooler to be

注 滑油冷却器位于油滤器之后，主要是为了使滤器运行效率更高（温度较高时易过滤净化）。A

5.Why do we use cylinder oil?

A. To neutralize the sulphur and get a lubricating oil film between piston rings and liner B. To get a lubricating oil film between piston rings and liner C. To neutralize the sulphur in the fuel D. To avoid blow-by

注 汽缸油是用来中和酸和在活塞环和气缸之间形成油膜润滑 A

第 1 页 共 1 页

轮机英语题库翻译·海大版

6. In a pressure type lubricating system,the lube oil service pump normally takes suction from the sump tank and discharge directly to the ______. A. lube oil cooler

B. main thrust bearing C. gravity feed tank D. lube oil heater

注 在压力润滑系统中，日用滑油泵通常从滑油储存柜吸进并且直接供给滑油冷却器。A

7. The common method of applying oil to the cylinder walls is by means of small pump assembled in units,known as _______. A. mechanical lubricator B. forced feed system C. lubrication function D. bearing lubrication

注 通过小的泵把滑油提供给气缸壁的方式叫机械润滑。A

8.Each of the engine cylinders is lubricated from a lubricator,driven by _____. A.a separated motor B.the engine’s piston C.the engine’s camshaft D.a turbine

注 驱动每个气缸滑油注射器的是凸轮轴 C

9.The lube oil in the bearings is drawn from a ____，usually located in the bedplate

A.tank B.sump C.vessel D.bottle

注 轴承的润滑油从油底壳吸入，油底壳一般位于机座内，B

10.The oil is drawn from a drain tank through ____,one of a pair of pumps, into one of

fine filters.

A.a strain tank B.a head tank C.a service tank D.a strainer 注 滑油从泄油柜吸入，前后经过一个粗滤器、一台油泵、一个细滤器等。D

11.The cross-head pin bearings are white metal lined shells lubricated by means of

____.

A.low pressure pumps B.centrifugal pumps

C.high pressure pumps D.mechanical compressors 注 十字头销轴承有白合金衬里，并通过高压油泵来润滑。C

12.The lubricating system for the cylinder walls is different from the bearings in that

the oil for former one is supplied in ____ while that for latter one is ____.

A.sufficient quantity; measured B.measured quantity; sufficient

第 2 页 共 2 页

轮机英语题库翻译·海大版

C.excessive quantity; sufficient

D.the less quantity the better; the more the better

注 气缸润滑系统与轴承润滑系统不同之处在于，前者提供滑油是经过计量的，而后者提供无限量的滑油（后者属于消耗型）。B

13. In some designs the cylinder oil is timed so that the oil injects only on the ____.

A.piston crown(活塞头) B.piston groove C.piston skirt D.piston ring belt

注 在一些设计中，气缸油的注入是定时的，以便气缸油仅仅喷射在活塞环带区域。D

14. Large marine diesel engines of crosshead construction generally have two systems

of lubrication:a total loss system feeding the ____ and a recirculation system lubricating the running gear and cooling the piston.

A.cylinder liners and piston rings B.main bearings C.crankpin beatings D.turboblower

注 十字头结构的大型船用柴油机一般有两套润滑系统：供应缸套和活塞环的全消耗系统；润滑轴承和冷却活塞的循环系统。A

* 15.In an engine with a pot-shaped piston, some lubricating oil from the main bearing

will pass along a ____ in the crankshaft to the bottom end bearing and then up a connection rod to the gudgeon pin.

A.telescopic pipes B.large bore C.drilled passage D.tied rod 注 对于筒状活塞的发动机，来白主轴承的一些滑油沿着曲轴内部的油道到下端轴承，然后沿连杆到达活塞销。C

16.A lubricant often has to perform many duties in any situation,in addition to its

fundamental job of ____.

A.resisting oxidization B.reducing friction C.promoting moving speed D.developing inertia 注 润滑剂除了其基本功用是减少摩擦之外，还有其他许多作用。B

17.There should be a lubricating oil ____ between the main bearings and the

crankshaft.

A.film B.cap C.lacquer(漆) D.shell 注 主轴承和曲轴之间应该有润滑油膜。A

18.In a diesel engine lube oil system, which of the following parts should be

第 3 页 共 3 页

轮机英语题库翻译·海大版

lubricated first?

A.Camshaft bearings. B.Main bearings. C.Piston crowns. D.Cylinder walls. 注 柴油机部件中，主轴承应首先被润滑。B

19.What is the main task of the lubrication oil in the engine? A.To lubricate and cool the engine B.To lubricate engine

C.To transfer heat out of the engine

D.To keep the crankcase clear and free of deposit

注 滑油在主机中的作用是润滑和冷却主机。A

20.The cylinder oil is supposed to be _______.

A.alkaline B. acidic C. Neutral D.any one of the other alternatives

注 汽缸油呈碱性。A

21.Generally the function of lubrication is to form of a film of lubricant between any

two surfaces that have relative ____,so that surfaces don’t get touch with each other. A.gravity B.motion C.ratio D.density

注 一般地说，润滑的功能是在具有相对运动的两个表面之间形成油膜，以免表面之间直接接触。B

* 22.The lubricating oil is pumped from the drain tank, very often with ____ in the

suction line.

A.a filter B.a strainer C.a magnetic filter(磁性过滤器) D.a fine strainer

注 润滑油从泄油柜被泵送吸入管路经常安装磁性滤器，用来去除金属颗粒C

23.In a diesel engine, the function of lubrication oil is to provide _____. A.a film between the shafts and bearings B.cooling of the pistons and bearings

C.for removal of dirt or metal particles resulting from wear D.Any one of the other alternatives

注 在柴油机中滑油的作用是提供：在曲轴和主轴承之间形成油膜，冷却活塞和轴承，带走细屑。 D

24.An excessive pressure drop a across a lube oil strainer could indicate _____. A.that the strainer needs clearing B.that the relief valve is stuck open C.that the strainer is OK

D.Any one of the other alternatives

第 4 页 共 4 页

轮机英语题库翻译·海大版

注 滑油过滤器的两端有大的压降，这时滤器应该被清洗。A

25.A dirty diesel engine oil filter element can best be detected by ____.

A.visual inspection of the elements B.the pressure drop across the filter

C.high lube oil sump temperature D.decrease in oil viscosity from the filter 注 柴油机滑油滤器芯件脏污可以通过滤器前后的压力降（压差）来判断。B

26.In the two stroke diesel engine, it is designed so that the oil impingement is timed

to proceed only on the piston ring belt during ____.

A.compression stroke B.suction stroke C.expansion stroke D.exhaust stroke 注 二冲程柴油机，设计成定时注入滑油，以便油只在压缩冲程射到活塞环带上。A

27.The piston crown employs the usual jet-shaker ____ principle with an arrangement

of cooling bores in the crown so that the surface temperatures of the crown are moderate with a very even distribution.

A.water cooling B.oil cooling C.air cooling D.combined cooling 注 按照在活塞顶冷却孔腔设计的油冷原理，活塞顶采用射油振荡器，以使活塞顶的表面温度均匀适中。B

* 28.In engines with ____ system, the lubricating oil can be added to the engine

through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe.

A.lubricating oil B.dry sump C.circulated tank D.wet sump 注 带有滑油系统的柴油机可用手提油壶或分油机管道，把滑油通过曲轴箱盖上的加注孔加到发动机里。D

29.The cylinder oil is pumped into the cylinder (via non-return valves) when the

piston rings pass the lubricating orifices, during ____.

A.the upward stroke B.the downward stroke C.the power stroke D.the suction stroke

注 在上冲程期间当活塞环经过润滑油孔时，气缸油泵入气缸（经止回阀）。A

30.The following options are all the functions of lubricating oil except ____.

A.removing heat and deposits B.neutralizing acidic products

C.lubricating D.improving combustion efficiency 注 除了提高燃油效率外，下列全是润滑油的功能。D

31.____ diesel engines generally have two systems of lubrication:a total loss system

feeding ____ and a circulating system lubricating the running gear and cooling the pistons.

A.Large cross head type; cross heads B.High speed; the cylinders

第 5 页 共 5 页

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说综合文库1.2.4 船舶柴油机润滑系统在线全文阅读。