最新轮机英语题库[]
第一章船舶动力装置
0001 “Before disconnecting the Oil pipe ，would you flush the oil retained in the pipe _______?”asked the oil barge owner．0001 B A．by using of fresh water （用淡水）B．with compressed air（用压缩空气）
C．by using Of sea water （用海水）D．with chemical compound （用化学混合物）
油驳主人问：“在拆开油管前，你能否用压缩空气吹出保留在管路中的油呢？”
加油结束后，在拆卸油管前，一般用压缩空气吹洗残留在软管内的油。0002 “Stand by an engine”means _____。“发动机备车”意“使发动机准备起动”。
A．“prepare to stop the engine ”（准备停止主机）B．“assemble an engine on its bedplate”（在机座上装配主机）C．“make an engine ready for starting”（使主机准备好以便起动）D．“dismantle an engine ”（解体主机）0002C
0003 A _______ is the foundation of the engine，without the support of which the shaft
alignment in particular，and engine structure as whole，would inevitably be lost．
（机座是柴油机的基本，没有它的支撑柴油机整机结构的精确的轴线对中将会失去）
A．Frame （机架）B．Bedplate（机座） C. Cylinder （汽缸）D．Liner （缸套）
“机座”是发动机的基础。0003 B
0004 _______ are commonly used in mechanical-hydraulic governor to sense engine speeds．
（在机械—液压式调速器中，飞重常被用来感应主机转速）A．Bulbs（n.鳞茎, 球形物）B．Bulks （n.大小, 体积, 大批, 大多数, 散装）
C．Flyweights （飞重）D．Flywheels（飞轮、调速轮）
在机械一液压式调速器中，感受发动机速度的部件是“飞重”。0004C 0005 _______ are generally formed in the frame of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end beading．
在直列和V型柴油机中，道门通常是被装来提供维修曲轴主轴承和连杆大端轴承的通道。
A．Doors（道门）B．Aspirate gauzer（吸气滤网）
C．Coupling （法兰）D．Blind （盲板）
直列式和Ｖ型发动机的机架上一般都有维修通道(导门)。0005A
0006______arrangements have low temperature and high temperature exhaust gas
passing through adjacent ports，causing temperature differential problems for the liner
material。回流扫气式布置有低温和高温气流通过邻近的气口，使缸套金属产生温差问题
A．Loop scavenge （回流扫气）B．Cross scavenge （横流扫气）C．Uniflow scavenge （直流扫气）D．Supercharge（增压）
回流扫气中，扫气空气(温度较低)和废气(温度较高)经过相邻的气口。0006A
0007 ______became oval，it should be machined．十字头销变成椭圆形,它需要光车。
A．The upper half of cross-h
ead bearing 十字头轴承上瓦B．the cross-head pin十字头销
C．The cross-head bearing十字头轴承D．The cross-head guide plate 十字头导板0007B
0008 ______device is provided to prevent starting air from being admitted to the cylinder before the reversing is completed ．一个联
锁装置用来防止在盘车结束前允许起动空气进入气缸
联锁装置可用来防止在发动机换向完成前启动空气进入到气缸。A．An automatic （n. 自动机械adj.自动的, 无意识的, 机械的）B．A transmission （n.播送, 发射, 传动, 传送, 传输, 转播）C．A self-regulating （自动调节）D．An interlocking （.联锁的）0008D
0009 _____fuel oils _____ lubricating oils require treatment before passing to the engine．
在进入主机前燃油和滑油均需进行处理。(燃油和滑油在进入发动机之前，都需要经过处理。) 0009 A
A．Both／and （两者都------) B．Neither／nor .两者都不C．Either／or(只能二选一的) D．Both／or (没此搭配）
0010 _____is sometimes used for piston cooling since leaks into the crankcase would not cause problems．润滑油有时用来冷却活塞，因为它漏泄到曲轴箱不会产生问题0010 C
滑油用作活塞冷却的一个好处是漏到曲柄箱不会产生污染问题。A．Diesel oil （柴油）B．Hydraulic Oil（液压油, 水力(系统用)油）C．Lube oil（.润滑油）D．Mineral oil（矿物油）
0011 _______ is the removal of exhaust gases by blowing in fresh air．扫气是通过鼓进新鲜空气而清除废气。(通过吹人新鲜空气去除废气的过程叫“扫气”。A项意“气体交换”；B项意“充气”) Ｄ项意“增压”。
A．Gas exchange （交换气体）B．Charging （.装料,炉料或增压）C．Scavenging （扫气）D．Supercharging （增压）0011 C 0012 _______ is used for cylinder and cylinder head，the salt water is used for cooling the
lubricating oil，the fresh water in the coolers and the charging air in the air cooler．
淡水用来冷却汽缸和气缸盖，海水用来冷却滑油，淡水在冷却器里，增压空气在空气冷器中
A．The fuel oil （燃油）B．The lube oil（滑油）
C．The sea water （海水）D．The fresh water （淡水）
用作气缸和气缸头冷却的是淡水。0012D
0013 _______ may be the first possible cause which makes the engine to lose power or
slow down when it is running．当柴油机运行时，轴承发热是引起柴油机功率损失或转速下
降先要的可能原因(发动机运行过程中功率下降或失速的第一可能原因是轴承过热。)
A．Hot bearing （轴承发热）B．Starting valves（起动阀）C．Unequal distribution of load （负荷分荷环均匀）D．Excessive crankshaft clearance（轴承间隙过大）0013 A
0014 _______ of an engine cranks
haft can be detected by measuring detections of crank
webs for each unit of the engine．柴油机轴线失中情况可通过测量柴油机曲轴各个单位曲柄不同位置的臂距值进行判断。(发动机曲轴失中可以通过测量臂距差来判断。)
A．Misalignment失中B．length （n.长度, 长, 时间的长短, [语]音长）0014A
C．Strength （n.力, 力量, 力气, 实力, 兵力, 浓度）D．Stresses （n.重压, 逼迫, 压力, 重点, 着重, 强调, 重音）vt. 着重, 强调, 重读
0015 _______of the A-frames there is a strong cast iron frame called the scavenging air box．
在A-型机架的顶部有一个称为扫气箱的坚固的铸铁结构(发动机A字架的顶部有扫气箱。)
A．At the top （在顶部）B．At the bottom （在底部）0015A C．In the top （无此结构）D．In the bottom （无此结构）
0016 _______ pistons have low inertia and high coefficient of thermal expansion
铝活塞具有惯性低和热膨胀系数高的（特点）。
(铝质活塞具有惯性小(重量轻)、热膨胀系数大的特点。)
A．Cast iron （n.铸铁, 锻铁）B．Cast steel （坩埚钢,铸钢）0016D C．Forged steel （铸钢）D．Aluminum （铝）
0017 _______ scavenging means both exhaust ports and scavenging ports are arranged to
the same side．回流扫气意思是扫气口和排气口都布置在同一侧。)回流扫气式发动机中，扫气口和排气口布置在同一侧。) 0017C A．Uniflow （直流）B．Cross（横流）C.Loop(回流) D．Straight(直的)
0018 _______ Should not undertake any task which will interfere with the supervision duties
relating to the main machinery and associated equipment．0018A
值班人员不应分派任何将妨碍管理主机和辅机职责的任务。(值班人员不能做任何影响其对主要机械和相关设备监视职责的工作。) A．The watch keeping personnel （值班人员）B．The chief engineer （轮机长）
C．The person on a bunker barge （油驳上的人员）D．Any of the above （以上任一个）
0019 _______ tappet clearance will cause the exhaust valve to open early and close late in
cycle and will increase its maximum lift. 0019 B
排气阀间隙过小将引起其在一循环中早开迟关并增加其升程。A．Excessive （adj.过多的, 过分的, 额外）
B．Insufficient（adj.不足的, 不够的n.不足）
C．Correct （adj.正确的, 恰当的, 端正的vt.改正, 纠正, 告诫, 惩戒) D. None of the above (以上都不是）
气阀推杆间隙过小会引起排气阀过早打开、过晚关闭。
0020 ______ tappet clearance will cause the exhaust valve to open late and close early in
cycle and will reduce its maximum lift．0020 C
排气阀间隙过大将引起其在一循环中迟开早关并减少其升程。A．Correct （adj.正确的, 恰当的, 端正的vt.改正, 纠正,
告诫, 惩戒)
B．Insufficient （adj.不足的, 不够的n.不足）
C．Excessive （adj.过多的, 过分的, 额外）
D．None of the above(以上都不是）
气阀推杆间隙过大会引起排气阀过晚打开、过早关闭。
0021______ tappet clearance will cause the exhaust valve to open late and close early in
cycle and will reduce its maximum lift．0021 C
排气阀间隙过大将引起其在一循环中迟开早关并减少其升程。A．Correct （adj.正确的, 恰当的, 端正的vt.改正, 纠正, 告诫, 惩
戒)
B．Insufficient （adj.不足的, 不够的n.不足）
C．Excessive （adj.过多的, 过分的, 额外）
D．None of the above is correct (以上都不是）（此题与0020题重复）0022 _______ the cylinder will contain a great weight of air and will be capable of burning a great quantity of fuel．选项中，较合理的答案只能是A。更好的答案应该是“At the end ofthe compression stroke”。意即“在压缩冲程结束时，气缸中有大量的空气并能燃烧大量的燃油”。在压缩行程初汽缸内将容纳了能大量能点燃大量的燃油的空气。A．At the beginning of the compression stroke 压缩行程初0022A B．At the beginning of the suction stroke 吸气行程初
C．At the end of the working stroke 工作行程未
D．At the end of the exhaust stroke 排气行程未
0023 _______ the supercharge pressure is，_______ power an engine develops．
增压压力越大，柴油机输出功率越大。0023 A
A．The higher／the more 越高---越多B．Higher／more 比较高/比较多
C．Higher /little 比较高/比较少D．The higher／the less越高---越少
0024 ______device is provided to prevent starting air from being admitted to the cylinder before the reversing is completed ．一个联
锁装置用来防止在盘车结束前允许起动空气进入气缸
A．An automatic （n. 自动机械adj.自动的, 无意识的, 机械的）0024C
B．A transmission （n.播送, 发射, 传动, 传送, 传输, 转播）
C ．An interlocking （.联锁的）
D ．A self-regulating （自动调节）(此题与0008题重复）
0025 _______ is not properly set thus causing either advanced or retarded firing
一台喷油泵定时不确，因此引起的不是早燃就是后燃。0025B A．A piston （一个活塞）燃油喷射泵没有正确调定，引起发火过早或过晚。
B．A fuel injection pump （一台喷油泵）
C．A feed water pump （一台供水泵）
D．A lube oil pump （一台滑油泵）
0026 _______ means（that) both exhaust ports and scavenging ports are arranged on
the same side．回流扫气意思是扫气口和排气口都布置在同一侧。0026C
A．Uniflow scavenging （直流扫气）B．Cross scavenging （横流扫气）
C.Loop scavenging(回流扫气) D．Straight scavenging(直的扫气)
(此题与0017题
重复）
0027 ______ rods are not in proper condition so that too much fuel is supplied to the
corresponding cylinder．调节杆调节不当以致造成相应汽缸供油过多。(燃油)调节杆没有在正确的位置，以致太多的燃油供应到相应的气缸中去了。0027C
A．piston （活塞）B、Sounding（探测、测深）
C．Regulating（调节）D．Connecting（连接，管接头，套管）0028 ______ shows 1．2 meter and the specific gravity of the oil is 0．96．According to the measuring scale，that makes 150 tons．量油杆显示油位1．2m。
测深杆显示是1.2米而油的比重是0.96，根据测量刻度总共是150吨油。
A．The piston rod （活塞杆）B．The push rod（推杆）0028C C．The sounding rod（测深杆）D．The connecting rod（连杆）
0029 ______ allows for expansion and water make up the water cooling system．
高位水箱（膨胀水箱）允许膨胀和向冷却水系统供水。0029 B A．A top tank （顶部箱）B．A head tank （落差贮水池、高位水
池、压力槽、压头箱）
C．A head valve（头阀）D．A drain tank（排水槽、储油槽）
冷却水系统中的高置水箱(膨胀水箱)用来供冷却水膨胀和补水。0030 ______ at the end of the distribution pipe ensures that adequate pressure is maintained by the pump．在分配管的未端的一只警报器用来保证泵能保持足够的压力。
A．A relief valve （一个安全阀）B．An alarm（一只警报器）0030 B
C．A pressure gauge （一个压力计）D、A non-return valve（一个止回阀）
分配管端的报警设备用来确保泵维持足够的压力。
0031 ______ is used for washing and drinking（生活水系统是用来冲洗和饮用。0031 D
A、The ballast system （压载水系统）B．The salt water system（海水系统）
C．The bilge system（舱底水系统）D．The domestic system（生活水系统）
船舶日用水系统提供盥洗水和饮用水。
0032 ______ provide the water to the pistons．（伸缩管供水到活塞）伸缩管用来向活塞提供冷却水0032C
A．Pneumatic pipes （空气管）B．Hydraulic pipes（液压管）C．Telescopic pipes （伸缩管）D. Operating gas pipes（工作气
体管）
0033 ______ are fitted in the exhaust system and facilitate charge removal and scavenging in each cylinder
（在排气系统安装有扩压器，以便各缸的增压空气易于吸入和扫除废气）。
A．Diffusers（扩压器）B、Compressors（压缩机）0033 A C．Steam boilers（蒸汽锅炉）D．Soot blowers（吹灰器）
发动机排气系统中装备的扩压器有助于排气和扫气。
0034 _____are formed by abrasive particles entering the bearing and scoring the shaft．
groove 凹槽是由进入轴承的磨料和轴划痕引起。
磨粒进入到轴承并在轴上划痕，这样便形成—
了凹槽。0034A
A．Grooves（凹槽）B．Recesses（凹进处）C．Ridges 背脊D．Nips （日本佬的）
0035 ______ are mounted on and bolted to the bed-plate cross girders．机架用螺丝固定在机座横梁。(发动机的机架安装在机座的横梁上并用螺栓与之固定。)
A．The crankshaft 曲轴B．The crankcase 曲柄曲箱0035D
C、The guide-ways 向导D．The frames 机架
0036 ______ is a precaution which contributes to avoiding trouble under normal operating
conditions．不间断监视是为了避免在正常运转条件下出现故障。(连续检查有助于避免在正常运行状态下产生故障。) 0036A A．Constant inspection（不间断监视）B．Keeping constant load（保持恒定的负荷）
C．Remaining constant temperature（保持恒定的温度）D、varying speed（改变速度）
0037 ______ is a source of power by which the diesel engine may operate．
热能是柴油机能运行的动力源(热能是发动机功率的来源。) 0037D A、Water energy 水能B．Electrical energy 电能
C．Chemical energy 化学能D．Heat energy 热能
0038 ______ is arranged for cleaning the lubricating oil in the system and clean oil can be provided from a storage tank．离心分油机是用来清洁从储存柜供来的润滑油系统的润滑油0038B
A．A filter 过滤器B、A centrifuge 离心分油机C、A distiller 蒸馏器D．A generator.发电机
滑油系统中，离心式分油机用来清洁滑油。与选项A(滤器)相比，B 更合适。
0039 ______ is fully floating in both connecting rod small end and the
piston shirt．0039C
活塞销完全浮动于连杆小端与活塞裙间(在二冲程柴油机中，活塞销一般是全浮动式的。)
A．The piston rod 活塞杆B．The cross head pin 十字头销
C．The gudgeon pin （耳轴销、活塞销、舵栓）D．The crank-pin 曲柄销
0040 ______ is made of a boss with separated blades mounted into it
调距桨是由一个带有独立叶片装进其中的轮毂制成。
(调距桨有桨毂和安装在桨毂上的几个桨叶组成。) 0040 A
A．A variable pitch propeller调距桨B．A variable pitch nut 调距螺母
C．A fixed pitch parallel 等距线D、A fixed pitch screw 等距螺丝0041 ______ is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve．空气分配器多是由凸轮轴驱动而其供应先导空气给气缸起动阀。0041 D
( 空气分配器一般由发动机的凸轮轴驱动，其作用是供应控制空气到气缸空气启动阀。)
A．An air receiver 空气接收器B．An operating valve 动作阀、操纵阀
C．An automatic valve 自动阀D．An air distributor 空气分配器C．The inhabitant居民／the water 水D．The additives添加剂／the distilled water .蒸馏水
0042 ______ neutralizes the acid conditions and______cleanses the rings
and grooves．
碱中和酸同时清洁环和环槽。(发动机气缸油添加剂中，碱性物质用来中和酸性产物；清洁剂用来清洁活塞环和环槽。) 0042B A．The detergency.去垢性,去垢力,洗净(作用)／the alkalinity 碱度B．The alkalinity碱度／the detergency去垢性,去垢力,洗净(作用) 0043 ______ of the controllable pitch propeller enables the blades to be moved to change
the pitch angle．调距螺旋桨的内部机构能使桨叶移动而改变螺旋角。0043 B
A．An external mechanism外部机构B．An internal mechanism内部机构
C．An interlock device 互锁装置D．A hunting gear system 随动系统调距桨内部机构(调距机构)能使桨叶转动以改变螺距。
0044 ______ on a ship transmits power from the engine to the propeller．0004C
船舶传动系统从柴油机传递动力到螺旋桨
(船上的推进系统把来自于发动机的功率传递给螺旋桨。)
A．Automatic control system 自动控制系统B．Speed regularly system调速系统
C．The transmission system 传动系统D．Compression air system压缩空气系统
0045 ______ or air venting arrangement is fitted to the fuel supply passage．0045D
供油管路装有灌注或排气口。(燃油供应管道中装备有放空气设备。) A．An air pump 抽气机B．A compressor 压缩机
C．A fuel pump 燃油泵D．A priming 灌注口
0046 ______ providing lubricating films，oil used in marine diesel engines have to remove heat from oil coo1ed piston．船用柴油机润滑油除了提供润滑油膜外，还从活塞带出热量而冷却活塞。0046D A．Except for 除...以外B、Beside .在旁边, 和...比较C．Except .除了...之外, 若不是, 除非conj.只是, 要不是D．in addition .除...之外
用在船用柴油机中的滑油，除了能提供润滑油膜外，还能带走活塞中的热量。注意“in
ionto”和“except”两者的区别。
0047 ______ the engines，the diesel engine is ____ used engine on board．0047B
在发动机中，柴油机在船上的应用最广泛。
A．Between／more commonly B．Among／the most commonly
C．Between／not more commonly D．Among／not the most commonly 在发动机中，柴油机用在船舶上最普遍。“among”指“三者及三者以上之中”。注意与
NeeH”用法的区别。
0048 _____ water is more expensive than fresh water，It has high specific heat and low
Viscosity．蒸馏水比淡水更昂贵，它具有高比热低粘度的特性。0048A A．Distilled adj.由蒸馏得来的B．Distilling 蒸馏(作用)
C．Boiling adj.沸腾的, 激昂的adv.沸腾
D．Boiled 清水罐头(以水或稀盐水作汤汁的罐头) 煮沸的煮熟的“distilled water"指造水机造出来的淡水。
0049 ______ for the camshaft gear train is taken from a spur gear which for a six cylinder engine is at the coupling end(凸轮轴
齿轮系的驱动力来自于正齿轮，对于六缸的发动机，该齿轮位于联轴器端。) 六缸柴油机的凸轮轴齿轮传动链的驱动力从位于联轴节端的正齿轮获得。0049 B A．The driven gear 驱动齿轮B．The drive 驱动力
C．The grease 油脂D．The lubricating oil 滑油
0050 ______ in what position the engine stops there will always be at
least one of the cylinders with its starting air valve open to admit compressed air to start the engine．
不管柴油机停止在何位置，至少有一个气缸的空气起动阀处于打开位置以允许空气进入气缸起动柴油机。0050 D
A．Because 多用于表示直接原因B．Owing to 由于, 因...之缘故C、For prep.(表示目的)为了, 因为, 至于, 对于, 适合于conj.因为D．No matter 不管
不管发动机停车在什么位置，至少有一个气缸，它的启动空气阀处在开启状态，以允许
空气进入启动发动机。该句表达的是让步状语从句。
0051 ______ is secured by means of side-chock bolts and end-chock bolts．
机座是由称为侧楔垫螺栓和端楔垫螺栓固定。0051 A
A．The bedplate机座B．The column 圆柱, 柱壮物, 专栏, 纵队C．The main bearing 主轴承D．The double bottom双层底
机座分别通过侧向和端向螺栓(与底座)固定。
0052 ______ controls the fuel Oil temperature in order to provide oil at the correct
Viscosity for combustion．粘度调节器通过控制燃油的温度来实现粘度的控制。0052A
A．The viscosity regulator B．The temperature controller
C．The flow meter D．The pressure switch
0053 ______ for attachment to the propeller shaft also accommodates the turning gear and is integrally forged the crankshaft．
与调距桨轴相连的联轴节法兰，同时也提供给盘车机，它与曲轴是整体锻造而成，
A．The coupling flange B．The camshaft 0053 A
C．The cross-head pin D．The cylinder jackets
0051 A 0052A 0053 A
0054 ______ should be taken out，cleaned，and lifting checked every four to six months．
A、pistons B．Fuel injection valves 0054B
C．Crankshaft D．Cylinder covers
燃油喷射阀(油头)应每4~6个月取出、清洁并进行启阀压力试验。0055 _____usually helps to induce air movement to assist combustion．活塞的运动有助于空气在气缸中流动，以利燃烧。
A．Cylinder cover B．Main bearing 0055D
C．The exhaust valve D．The piston movement
0056 ______ may have two emergency source of power，thus requiring two emergency
switchboards．大型客轮上往往装备有两套应急电源，这样需要两个应急配电板。
A．Large passenger vessels B．General cargo ships
C．Container ships D．oil tankers
中华人民共和国海事局 2006年第3期海船船员适任证书全国统考试题(总第41期) 科目：轮机英语试卷代号：805 适用对象：无限、近洋航区3000KW及以上船舶二/三管轮 （本试卷卷面总分100分，及格分为70分，考试时间为100分钟） 答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。 一、单项选择题 1. A diesel engine is similar to a gasoline engine except that the former has no ______. A. cross-head B. spark plug C. connecting rod D. cylinder 2. A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is commonly classed as a ______. A. slow-speed diesel B. medium-speed diesel C. high-speed diesel D. constant-speed diesel 3.Which of the diesel engine components listed increases air density and helps to improve engine operating efficiency? A. Impeller B. Compressor C. After-cooler D. Exhaust diffuser 4.For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four- stroke/cycle diesel engine because ______. A. it has a longer power stroke B. more air gets into the cylinder each stroke C. it develops twice as many power strokes at the same speed D. higher combustion pressure is developed 5.The intake valves in a diesel engine are reseated by ______. A. cam followers B. push rods C. combustion gases D. valve springs 6.According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and ______. A. the pulse-phase system B. the pulse Doppler system C. the pulse system D. the pulse interval system 7.An over-speed safety device is usually fitted to a generator engine for______in the event of over- speed. A. cutting power off the engine B. increasing the fuel pump setting C. braking the crankshaft D. stabilizing the ship speed 8.What preventative maintenance should be done frequently to diesel engine starting air receivers? A. Drain the accumulated moisture. B. Test the relief valves. C. Watch the temperature to prevent fluctuations in pressure. D. Clean the interior to remove oil and foreign matter. 9.Immediately after any diesel engine is started, the engineer should check the ______. A. crankcase pressure B. lube oil pressure C. seawater pressure D. exhaust temperature 10. A controllable pitch propeller on a diesel driven vessel eliminates the need for ______. A. friction clutches B. disconnect clutches C. reversing gears D. reduction gears 11.In motor ship, ______is often used to recover some of the heat carried in the exhaust gases from the main engine. A. an diesel oil heater B. a waste heat boiler C. a fresh water generator D. a donkey boiler 12.An exhaust gas bypass is installed on a waste heat boiler in order to ______. A. bypass exhaust gas at high loads to prevent excessive back pressure B. bypass a portion of the exhaust gas at peak loads for better efficiency C. recycle exhaust gas to the turbocharger D. minimize moisture condensation in the boiler gas passages at low loads 13.Prior to lighting off a cold automatically fired auxiliary boiler, you should ______. A. check and regulate the water level B. close the air cock once fires are lit C. blow down the gage glass D. assure protective steam flow 14.Flame failure in an automatically fired auxiliary boiler can mostly result from a/an ______. A. incorrect electrode setting B. incorrect nozzle position C. clogged fuel nozzle D. broken high tension lead 15.Waterside scale in a fire-tube boiler may cause ______. A. increased heat transfer B. fireside erosion C. high steam demand D. overheated tubes 16.Which of the following will be the advantage of a centrifugal pump as compared with a reciprocating pump? I. Its discharge is continuous; II. It has no internal valves; III. Upon accidental closing of discharge valve, excessive pressure will not build up A. I, II B. II, III C. I, II, III D. II only 17.Why are removable sleeves installed on centrifugal pump shafts? A. They make it easier to replace the pump shaft packing. B. They can be economically replaced as they wear out. C. They can be removed when it is necessary to lighten the weight of the pump. D. They increase the strength of the shaft. 18.If one of the bilge system manifold valves does not properly seat, the ______. A. bilge well connected to that valve, plus the second bilge well being pumped will be completely emptied B. bilge system will lose vacuum and prevent the other bilges from being pumped out C. bilge well aft connected to that valve will siphon(虹吸) its contents to the forward bilge wells D. discharge pressure will be too high. 19.Which of the listed statements is correct concerning the starting of centrifugal pumps? A. They should always be started with the discharge valve closed. B. They should always be started with the discharge valve opened. C. A priming pump is always required to flood the impeller suction. D. They should always be started with the sealing line valves closed. 20.The simplest method to use for determining if a centrifugal pump is operating as designed, is to ______. A. closely observe the pump discharge temperature B. close off the discharge valve, and watch for a rise in pressure C. momentarily close off the suction valve, and watch for a rise in pressure D. use a clamp on ammeter and compare the readings to past records
中华人民共和国海事局 2007年第2期海船船员适任证书全国统考试题(总第43期) 科目：轮机英语试卷代号：805 适用对象：无限、近洋航区3000KW及以上船舶二/三管轮 （本试卷卷面总分100分，及格分为70分，考试时间为100分钟） 答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。 一、单项选择题 1.______ the engines, the diesel engine is ______ used engine on board. A. Between/more commonly B. Among/the most commonly C. Between/not more commonly D. Among/ not the most commonly 2.The average pressure exerted on a piston during each power stroke is termed ______. A. indicated horsepower B. mean effective pressure C. exhaust back pressure D. compression pressure 3.The cetane number rates fuels for diesel engines according to its ______. A. antiknock characteristics B. ignition qualities C. rates of vaporization D. viscosity 4.The time between injection and ignition of the fuel is known as ______. A. turbulence lag B. after burning ratio C. pre-ignition lag D. ignition delay 5.______ controls the fuel oil temperature in order to provide oil at the correct viscosity for combustion. A. The viscosity regulator B. The temperature controller C. The flow meter D. The pressure switch 6.Constant cooling the various components of diesel engine has a number of functions except for ______. A. good lubrication B. low thermal stress C. good mechanical properties D. acid corrosion 7. A device which functions to bring a diesel engine to a full stop to protect it from damage is known as a/an ______. A. torque limiter B. over-speed trip C. over-speed governor D. load limit governor 8.Engine speeds at which resonance can occur are termed ______. A. maximum speeds B. full speeds C. sea speeds D. critical speeds 9.Prolonged operation of a diesel engine with a closed cooling water system at lower than normal designed operating temperatures can ______. A. increase power output B. decrease lube oil viscosity C. eliminate fuel knock D. cause sulfuric acid formation 10.______ on a ship transmits power from the engine to the propeller. A. The automatic control system B. The speed regularly system C. The transmission system D. The compression air system 11.In a _____ boiler the hot gases from the furnace pass through the tubes while the water is on the outside. A. water-tube B. fire-tube C. exhaust gas D. composite 12.The fuel supply system to an automatic auxiliary boiler, will be automatically shutdown if the boiler ______. A.salinity is abnormally B.high steam demand is too high C.feed-water flow is low D.water level is abnormally low 13.The water in a steaming auxiliary boiler should be tested daily for ______. A. dissolved oxygen B. chlorides C. sludge D. dissolved nitrogen 14.Ignition failure in an automatically controlled auxiliary boiler could be caused by ______. A. carbon deposits on the flame scanner B. high fuel oil temperature C. low fuel oil viscosity D. high steam pressure 15.The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of ______. A. seawater contamination B. frequent surface blows C. dissolved oxygen de-aeration D. frequent bottom blows
中华人民共和国海事局 2009年第5期海船船员适任证书全国统考试题(总第48期) 科目：轮机英语试卷代号：803 适用对象：无限、近洋航区3000KW及以上船舶大管轮 （本试卷卷面总分100分，及格分为70分，考试时间为100分钟） 答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至82题，每题1分，第83题至94题，每题1.5分。 一、单项选择题： 1. The reason why more and more of the large merchant vessels are being powered by medium-speed diesel engines is . A. they operate between 150 and 450 rpm B. they are connected to the propeller by gearing C. their smaller size and weight D. they can be connected directly to the propeller without gearing 2. The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by . A. large conical springs B. compressed air pressure C. hydraulic pressure D. exhaust gas pressure 3. One of the factors limiting the amount of toad which can be put on a modem marine diesel engine is the . A. governor sensitivity B. exhaust temperature C. fuel injection pressure D. speed of the cam shaft 4. The desirable properties or a marine fuel oil should inc lude . A. high flash point and high viscosity B. low flash point and high viscosity C. low heating value and high sulphur content D. high heating value and low sulphur content 5. As the plunger moves upwards in the barrel, injection will commence once the plunger bas the spill ports and the pressure builds up. A. opened up B. closed off C. lined up D. taken off 6. In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces . A. all of the oil used by the engine through a filter B. some of the oil used by the engine through a filter C. some of the oil used by the engine through a centrifuge D. all of the oil used by the engine through a centrifuge 7. Because the circulating water is in a closed loop, is installed to cater for expansion and contraction of the water at different conditions of operation. A. an expansion joint B. a drain tank C. a head tank D. a contraction tank 8. The high air velocity leaving the compressor of an exhaust gas turbocharger is converted to pressure in the . A. inlet nozzle ring B. turbine wheel blade C. diffuser passages D. inlet volute 9. is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve. A. An air receiver B. An operating valve C. An automatic valve D. An air distributor 10. Diesel engines driving alternators operating in parallel must maintain a set frequency regardless of load changes. The governor characteristic used to accomplish this is known as . A. actuation B. sensitivity C. compensation D. promptness 11. By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a . A. tachometer B. pyrometer C. dynamometer D. calorimeter 12. When the ship is going to enter into the harbor, ____. A. change from heavy fuel oil to diesel oil for main engine B. pumping out bilge water C. change sea chest from high level one to lower level one D. test emergency generator 13. If the jacket water temperature rises rapidly above normal in a diesel engine, you should first . A. place standby cooler in operation B. reduce engine toad C. check thermostatic valve D. clean sea water strainer 14. Air cocks, usually positioned at the in a circulating system, is used to get rid of the air in the system. A. bending joint B. expansion tank C. weld D. the highest point 15. Which of the following conditions could contribute to the cracking of a diesel engine cylinder head? A. Leaking seal ring B. Insufficient heat transfer from the exhaust valves C. Blocked cooling water passages to the head D. Excessive scavenging air provided to the engine 16. of an engine crankshaft can be detected by measuring deflections of' crank webs for each unit of the engine. A. Misalignment B. Length C. Strength D. Stresses 17. can be a direct cause of faulty operation of diesel engine fuel injection nozzles. A. Excessive fuel nozzle holder cooling B. Sediment in the fuel supply C. Distortion of the fuel spray pattern D. Improper atomization of the fuel 18. When fuel is injected late into a diesel engine cylinder . A. the exhaust will be clear B. fuel consumption will be low C. all the fuel will be burned at top dead center D. fuel consumption will be high 19. A large change in ambient temperature, or using an oil of a viscosity different than the one recommended by the manufacturer in a mechanical hydraulic governor, will result m the need to adjust the . A. pilot valve opening B. compensating needle valve C. compensating spring tension D. accumulator spring tension 20. Which of the following factors tends to increase scale formation on the saltwater side of a heat exchanger used in a diesel engine cooling water system? A. Baffle plates that have been bent during prior removal. B. Leaks m the cooler tube nest. C. Operating the engine while maintaining a high sea water outlet temperature. D. A punctured sea water strainer supplying cooling water to the heat exchanger. 21. If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to the engine. A. stop B. start C. speed up D. slow down 22. In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve?
5.2 MARPOL73/78 公约 5.2.1 MARPOL73/78 公约中有关含油污水的排放规则 3192. If it becomes necessary to pump bilges while a vessel is in port, which of the following procedures should be followed? A. Pump only if the discharge is led to a shore tank or barge. B. Pump only during the hours of darkness. C. Pump only on the outgoing tide. D. Pump only as much as is necessary. 3193. The scuppers should be plugged _____. A. only if fixed containment is not used B. only if portable containment is not used C. only if fixed containment drains are open D. whenever the vessel is being bunkered 3194. When discharging bilge water, which criteria must be observed? A. The requirement for the oil content of bilge water discharged is 15 ppm. B. No discharge in sensitive waters. C. Any discharge in sensitive waters. D. International, national or local requirements have to be observed. 3195. When bilge water is heated in a holding tank, which one of the following statements is not accurate? A. The relative high temperature facilitates primary gravity separation. B. Most of the oil and organic solvents are raised to the top layer. C. The relative high the temperature is, the top oil will be collected. D. The normal high temperature has little use on the separation of emulsified oil. 3196. If an oil spill occurs on deck, you should _____. A. cover the area with foam B. cover the area with absorbent material C. wash down immediately with a fire hose D. wash down immediately with an oil dispersing solvent 3197. Which of the following methods might favor oil emulsion in bilge water? A. Raising temperature. B. Less use of surfactant C. More use of solvent.
11规则大连海事最新轮机英语题库翻译（三） 作者：系统管理员来源：发布时间： [2014-02-25] 点击数： 683 1.2.2 1. A diesel engine is similar to a gasoline engine except that the former has no ______. A. piston B. connecting rod C. cylinder D. spark plug D柴油机与汽油机相似除了柴油机没有火花塞 2. Fuel oil begins to inject into the cylinder of a four-stroke diesel engine during the _____. A. intake stroke B. exhaust stroke C. power stroke D. compression stroke D燃油开始喷射进入柴油机气缸是在压缩冲程末 3. Oil for piston cooling is delivered through rod to a compartment in the piston heat, then distributed as a result of piston motion, and finally drained to the crankcase through one or more holes or pipes; this procedure is known as the _____. A. splash method B. spray method C. shaker method D. throw-off method C活塞冷却油通过活塞杆进入一个空间，由于活塞的往复运动，将通过一些小孔管加热，分配最后排放冷却油到曲轴箱，这个过程被称为震荡冷却 4. Successful combustion inside the cylinders of a diesel engine depend upon______. A. fine atomization B. high temperature C. good mixing of fuel and air D. any one of the other alternatives D柴油机气缸内完全燃烧取决于良好雾化，高温，以及燃油空气的良好混合 5. The function of diesel engine valve springs is to ______. A. hold the valves open B. keep the valves off their seats until the exhaust stroke is completed C. close the valves D. open inlet valves when the air injection cycle begins C 柴油机阀件弹簧的作用是关闭阀 6. Cast iron pistons used in large propulsion diesel engines are constructed with_____. A. no taper B. the skirt being tapered and smaller than the crown C. the skirt being tapered and larger than the crown D. the crown being tapered and smaller than the skirt D 使用在大型推进装置的铸铁活塞的建造是使用活塞头呈锥面，并且小于活塞裙
试题十九 一、单项选择题： 1.The lower section of a piston is called the ______. A. land B. skirt C. crown D. plate 2.Which cause of the following can lead to the engine not to start on air? A. starting air pressure too high B. correct timing of starting air valves C. three of the starting valves stuck D. the turning gear disengaged 3.Which of the following can be obtained by means of an indicator card? A. the peak pressure in a cylinder. B. the temperature of the cooling water. C. the fuel consumption. D. none of the above. 4.Expansion tank should be used to remove ______from cooling water. A. scale B. sludge C. chemicals D. air 5.Cracks in the cylinders and cylinder covers may result from ______. A. low speed B. unequal heating C. less lubricating D. low charge air pressure 6. A lube oil filter can be used to remove most contaminants from lube oil. A contaminant which will remain in the lube oil after filtering is ______. A. abravise B. fuel oil C. sediment D. impurities 7. A ship designed for carrying goods requiring refrigeration is called_____. A. REEFER B. RO/RO SHIP C. CONTAINER D. TANKER 8.______is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve. A. An air receiver B. An operating valve C. An automatic valve D. An air distributor 9.______in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine. A. Because B. Owing to C. For D. No matter 10.The pressurized air is usually cooled to increase the charge air ______. A. viscosity B. density C. velocity D. electricity 11.Load control on a diesel engine is accomplished by ______. A. regulating the speed of the turbocharger B. rotating the fuel injector pump plunger C. regulating the speed of the fuel oil transfer pump D. changing engine timing 12.When a vessel is in dry-dock, the vessel's engineers should ______. A. examine the condition of the propeller B. chip and paint all hull protection zincs C. install new docking plugs in all cofferdams(干隔舱) D. inspect the hull for hogging or sagging 13.The gear and screw pumps are classified as ______. A. variable stroke pumps B. multistage pumps C. positive displacement pumps D. triple-ported pumps