46期大管轮船舶辅机试题

2400、限制功率的液压系统实质上是限制________。

(191069:第06章船舶液压设备:857)A．最大工作压力B．液压马达转速C．工作压差和流量的乘积D．液压马达的扭矩2401、731. 1816、如图：所示为变量泵—双速油马达液压系统简图，换档阀处在左位时：（ ) (191071:第06章船舶液压设备:858)A．油马达排量最大B．油马达转速最小C．油马达扭矩最大D．以上说法均对的2402、如图：换档阀处在右位时：（） (191073:第06章船舶液压设备:859)A．油马达排量最大B．油马达转速最大C．油马达扭矩最大D．以上说法均错误2403、如图：关于此系统，下列说法对的的是：（） (191074:第06章船舶液压设备:860)A．一个油口进油，两个油口回油属于轻载运营，输出扭矩较小B．重载和轻载时油泵的最大输出功率相同C．在重载时用轻载档，因油马达排量太大，安全阀也许由于工作油压过高而启动D．A+B2404、起货机中双速液压马达调速阀通常采用：___ (191072:第06章船舶液压设备:861)A限压溢流阀B换向阀C压力阀D流量控制阀2405、起货机液压系统采用高、低速挡不是为了________。

(191070:第06章船舶液压设备:862)A．轻载时采用高速，提高装卸效率B．重载时采用低速，减小功耗C．无须配太大电机并提高电机功率运用率D．实现恒功率控制2406、使用恒功率变量泵的液压甲板机械当定量液压马达输出扭矩增大时，以下说法对的的是________。

(191068:第06章船舶液压设备:863)A．工作压力大体不变B．液压马达进油流量大体不变C．液压泵转速近似成反比减少D．液压泵排量近似成反比地减少2407、起重机构的阀控型液压系统在液压马达的重物下降时的出油管上设溢流阀的重要作用是________。

(191067:第06章船舶液压设备:864)A．防止液压泵排压过高B．防止制动时液压马达及出油管路油压过高C．使液压泵排压稳定D．使液压马达工作压力稳定2408、起重机构阀控型液压系统在泵出口至换向阀间设溢流阀的重要作用是________。

2008年第6期海船船员适任统考试题（总第46期）科目：轮机维护与修理试卷代号：8731．滑油变质，柴油机主轴承的轴承合金烧熔的故障属于——故障。

A．管理性B．突发性C．磨损性D．渐进性2．船机磨损故障期的特点是A．故障率低B、故障率随时间延长而增加C．时间较长D．故障率随时间延长而降低3．全寿命维修的核心思想是要求产品在————所耗费用最少。

A．全寿命周期内B．使用过程C。

修理阶段D．研制过程4．船舶机械有计划保养系统PMS对耐用型设备、低值设备、非生产型设备采用A．定时维修方式B．事后维修方式C．定期维修十视情维修D。

视情维修方式5．按规定周期结合坞内检验和保持船级的“年度检验”进行的检验修理是——。

A．小修B．航修C．检修D．大修6．为了减小摩擦与磨损．可在摩擦副间加入某种物质，使摩擦阻力降低的措施称之为。

A润滑B．摩擦C。

磨损D．摩擦学7 船舶机器在实际运转中，在、工况时摩擦副难以实现或保持液体动压润滑。

A．起动B．起动、停车C．低速运转D．高速运转8．利用摩擦表面的相对运动产生楔形油膜或挤压油膜来承受外部载荷并隔开摩擦表面，这种润滑称为A．流体动压润滑B．流体静压润滑C．强力润滑D．油脂润滑9．摩擦表面间的机械作用主要表现形式是I、变形11、剪切Ill、挤压Ⅳ、拉伸V、弯曲AⅡ＋ⅢBⅠ+Ⅱ+Ⅲ．C.Ⅰ+Ⅲ+ⅣD．Ⅰ＋Ⅲ＋IV＋V10．在摩擦过程中，运动副工作表面上的氧化膜不断地脱落使运动副零件金属损失的现象是一种磨损。

A腐蚀B．微动C．疲劳D．化学11．影响船机零件磨粒磨损的主要因素有A磨粒B．摩擦副材料C．润滑油粘度D．磨粒和摩擦副材料12．柴油机正常运转时气缸套与活塞环的摩擦表面间可能产生的磨损类型有一。

I、粘着磨损Ⅱ、腐蚀磨损Ⅲ、磨粒磨损IV、疲劳磨损V、微动磨损A．1＋11＋111．B.Ⅰ＋Ⅱ＋ⅤC．Ⅰ＋ⅢD．Ⅰ十Ⅳ＋V13．燃油中含有较高的————是引起气缸套产生磨粒磨损的重要原因。

中华人民共和国海事局2008年第6期海船海员适任统考试题（总第46期）科目：轮机长业务试卷代号：811适用东西：3000KW及以上船舶轮机长（本试卷卷面总分100分，合格分为70分，考试时间100分钟）答题说明：本试卷试题均为单项选择题，请选择一个最符合的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

每题1分，共100分。

1．以下属于轮机长职责范畴的事情是。

I、经常亲自查抄机电设备事情情况，纠正异常工况参数II、飞行中每日正午查抄轮机日志记录情况III、飞行中每天正午审签炉水处理惩罚陈诉表及冷却水处理惩罚陈诉表及冷却水处理惩罚记录IV、厂修期间落实轮机部种种宁静防护步伐A．I＋II＋IV B．I＋IV C．I＋III＋IV D．I～IV2．轮机长审阅轮机日志时，对付记录栏内一昼夜的等记录应进行审核并签名确认。

I、燃料耗存量II、飞行时间、航速III、主机平均转速IV、副机运转时间V、盘算滑失率A．I＋II＋V B．III＋IV＋V C．I～IV D．I～V3．轮机长对轮机人员实施宁静教诲其目的是。

I、提高宁静生产的责任感和自觉性II、提高宁静意识III、掌握宁静规律，提高预防和排除妨碍的能力IV、创建良好的宁静素质和严谨的事情作风A．I十II B．I＋II十IV C．I＋III＋IV D．1～IV4．对在保修期内产生的尚未判明的妨碍，轮机优点理原则应是。

I、应详细说明妨碍现象II、已经做过的查抄和采取的步伐III、列举可能导致妨碍的原因IV、提供妨碍前后的相关数据V、期待保修工程师解决A．I＋II＋IV B．I＋II＋IV＋V C．I～IV D．I＋II＋III5．STCW78／95条约关于值班的规定，当值轮机员应确保，不应被分派或包袱当何妨碍他对主推进系统及隶属系统监控的其他事情。

A．职责范畴内的设备处于羁系范畴内B．对呆板和舵机间有足够的巡视C．对机器设备有足够的巡视D．修理事情正常进行6．凭据ILO于2006年2月23日通过的《海事劳工条约》的有关规定，所有分派作为卖力值班的高级海员或组成值班的普通海员应在任何24小时时段内至少有小时的休息时间。

科目：船舶电气试卷代号：851 期数46期适用对象：3000KW及以上船舶二／三管轮1．电场力推动电荷移动而作功，衡量电场力作功能力大小的物理量是。

A电压B．电容C．电流D．电动势2．在图中四条电源外特性曲线中，电源内阻最小的是。

3．并联电阻的作用是A．分频B．增大电阻C．分流D．分压4．均匀磁场的磁感应强度A．大小相同B.方向相同C．大小、方向相同D．大小不同5．试用左手定则判断下图中矩形线圈的运动方向，正确答案是A．逆时针转动B．顺时针转动C．向上平移D．向下平移6．通电导体切割磁力线将会产生感应电动势，确定磁场、导体运动和感应电动势方向关系应用A．右手螺旋定律B．左手定则C．右手定则D．楞次定律7。

对硬磁材料的说法，错误的是。

A．碳钢、钴钢是硬磁材料B．磁滞回线较宽C．矫顽力较大D．硬磁材料是制造电机铁心的材料8．磁路欧姆定律表明，当磁通不变，若磁路磁阻增人，则磁动势。

A．增大B．减小C．不变D．变化无法确定9．已知正弦交流电周期为0.02秒，则频率为赫兹，角频率为弧度／秒。

A．50／100π B．l00／100π C．10／314 D．50／100π10．通过示波器观察到的一个电路的电压、电流波形图如图。

由此可断定电路接的是。

A电感B．电容 C．电阻 D．可等效成电阻与电容的串联11．单相交流电路的电压幅值为Um，电流幅值为Im，则视在功率S 为。

12．一对称三相电源给对称三相负载供电如图，三相电源线电压为380V，负载电阻RA＝RB＝RC＝220V．则流过各相负载电阻的电流、各相负载端电压分别为。

13．一般说来，本征半导体的导电能力，当掺入某些适当微量元素后其导电能力＿。

A很强／更强B．很强／降低C．很弱／提高D．很弱／更弱14．如图，设输人信号U为正弦波，幅值为1伏，二极管导通时的正向电压降为0．6V，关于输出信号Uo的说法，正确的是输出电压值范围介于间。

15．某单相半波整流电路直接接有电阻负载，负载平均电流为90mA，整流电路输人的交流电压有效值为24V，关于选择整流二极管的参数（最大整流电流IDM。

丁类（大管轮）辅机题库丁类轮机员适任证书考试船舶辅机题库第一章船用泵第一节泵的分类和性能参数A 001、下列泵中属于叶轮式泵的是________。

A、离心泵B、齿轮泵C、往复泵B 002、下列属于回转式容积式泵的是________。

A、离心泵B、齿轮泵C、往复泵B 003、泵铭牌上标注的流量是指________流量。

A、实际排送的B、额定工况的C、可能达到的最大C 004、泵铭牌上标注的流量通常是指________。

A、单位时间内排进液体的重量B、单位时间内排送液体的质量C、单位时间内排进液体的体积C 005、压头是指泵传给受单位重力（每牛顿）作用的液体的能量，其单位是________。

A、牛顿B、帕C、米C 006、泵的轴功率是指________。

A、原动机的额定输出功率B、泵传给液体的功率C、泵轴所接受的功率C 007、泵的有效功率是指________。

A、原动机的额定输出功率B、泵传给液体的功率C、泵排出的液体实际所得到的功率C 008、泵的总效率是指________。

A、实际流量与理论流量之比B、实际扬程与理论扬程之比C、有效功率与轴功率之比C 009、允许吸上真空度是反映泵的________。

A、形成吸口真空的能力B、排液高度的能力C、抗汽蚀能力C 010、泵铭牌上一般标注________效率。

A、容积B、水力C、总C 011、从往复泵铭牌上可知道的性能参数是________。

A、输入轴的转速B、额定扬程C、允许吸上真空高度A 012、泵的容积效率是指________。

A、实际流量与理论流量之比B、实际扬程与理论扬程之比C、有效功率与轴功率之比第二节往复泵C 013、往复泵的作用数一般是指活塞在________的排水次数。

A、每秒钟内B、每分钟内C、曲轴每转C 014、往复泵阀箱被吸入阀和排出阀分隔为三层，中层通________。

A、吸入管B、排出管C、泵缸B 015、影响往复泵理论流量的因素有________。

集美版《船舶辅机(大管轮)》共2786道试题1、流体与固体的最大区别是流体______。

(191077:第01章流体力学:1)A．易流动B．可压缩C．A和 BD．不可压缩2、流体与固体的最大区别是流体______。

(191078:第01章流体力学:2)A．可压缩B．无一定形状C．A和BD．不可压缩3、下列是______流体的物理性质。

(191079:第01章流体力学:3)A．粘度，流动速度，流体质量B．密度，压缩性，表面张力C．流体速度，流体重量，密度D．粘度，流体重量，表面张力4、下列______参数属于流体的物理性质。

(191080:第01章流体力学:4)A．表面张力，膨胀性，流量，含气量B．表面张力，含气量，压强，膨胀性C．表面张力，膨胀性，流量，空气分离压D．表面张力，含气量，膨胀性，空气分离压5、下列______参数不属于流体的物理性质。

(191081:第01章流体力学:5)A．重度B．重量C．粘滞性D．膨胀性6、如图 (191082:第01章流体力学:6)ABCD7、如图 (191083:第01章流体力学:7)ABCD8、标准大气压下，4℃的蒸馏水的密度为_____ kg/m3（符号如图）。

(191084:第01章流体力学:8)A．100B．1000C．9800D．1000009、在常态下，水由热胀冷缩的特性变为冷胀热缩特性，这一转变的温度是_____。

(191085:第01章流体力学:9)A．4℃B．0℃C．-4℃D．-5℃10、同种流体的重度随_____的变化而变化。

(191086:第01章流体力学:10)A．温度B．压力C．温度和压力D．A、B、C都不对11、温度对液体的重度_____，压力对液体的密度_____。

(191087:第01章流体力学:11)A．影响很大／影响很大B．影响很大／影响很小C．影响很小／影响很大D．影响很小／影响很小12、温度对气体的密度_____，压力对气体的密度_____。

1、如图1所示的图形符号表示的是______阀。

A.先导型溢流B.卸荷溢流C.遥控卸荷D.先导型定值减压2、如图2关于泵1和泵2的说法，正确的是：A．泵1是高压大流量泵（图1）B．泵2是高压大流量泵C．泵1是低压大流量泵D．泵2是低压大流量泵3、如图2：此工作系统在低压工作时（）A．泵1和泵2同时向执行机构供油B．只有泵1向执行机构供油C．只有泵2向执行机构供油D．以上情况都有可能4、如图2所示，阀件3是______阀。

（图2）A. 安全B.卸荷溢流C. 电磁溢流D. 定值减压5、如图2：如果执行机构中的油压继续升高，达到阀件3溢流阀的动作油压后（）A．泵1和泵2同时向执行机构供油B．只有泵1向执行机构供油，泵2卸载C．只有泵2向执行机构供油，泵1卸载D．因为溢流阀开启，所以两台泵都不能向执行机构供油，两台泵都属于卸载状态（图3）6、图3为某起重机构的液压系统，在本系统中，实现调速和限速功能的元件是：A．泵1B．阀7C．阀11D．阀147、如图3：本系统中，机械制动器是属于：A．及时制动及时松闸B．延时制动及时松闸C．及时制动延时松闸D．延时制动延时松闸8、如图3：本系统中的主油路：A．右侧管路始终承受高压B．左侧管路始终承受高压C．左右两侧油压相等D．视起重还是落货才能判定哪侧管路承受高压9、如图3：本系统中，中位旁通阀12的工作状态是：A．在起升状态时工作于右位B．在落货状态时工作于右位C．在制动状态时工作于左位D．在制动状态时工作于右位10、如图3：本系统中，溢流阀15的作用是：A．安全阀，防止低压侧油压过高B．背压阀，决定低压侧的油压大小C．定压阀，决定补油压力大小D．安全阀，防止高压侧压力过高11、如图3：本系统中，溢流阀14和溢流阀15的工作状态分别是：A．常开，常闭B．常闭，常开C．常开，常开D．常闭，常闭12、如图3所示，安全阀14是______，其作用是______。

A.溢流阀/防止起货机因超载而导致系统油压过高B. 顺序阀/防止起货机因空载而导致液压马达转速过快C. 减压阀/防止起货机因超载而导致系统油压过高D. 平衡阀/防止起货机因空载而导致液压马达转速过快（图4）13、如图4：作为先导阀的阀9是（）：A．三位四通电磁换向阀B．三位四通电液换向阀C．比例电磁换向阀14、如图4：关于系统的补油，说法正确的是：（）A．由主泵从油箱吸油后直接往系统低压侧补油B．由辅泵通过阀7的溢流阀往系统低压侧补油C．由辅泵通过阀7的单向阀往系统低压侧补油D．由辅泵通过阀9往系统低压侧补油15、如图4：主泵的排向和排量：（）A．由辅泵4的排压决定B．由辅泵4的流量决定C．由输入阀9的电流信号决定D．由阀7的溢流阀设定16、如图4，阀6是（）阀，它起（）作用，正常工作时（）A、溢流，防止辅泵排压过高，常闭B、减压，设定辅泵排压，常开C、溢流，设定辅泵排压，常闭D、溢流，设定辅泵排压，常开（图5）17、右图5所示为变量泵—双速油马达液压系统简图，换档阀处于左位时：A．油马达排量最大B．油马达转速最小C．油马达扭矩最大18、如图5：换档阀处于右位时：A．油马达排量最大B．油马达转速最大C．油马达扭矩最大D．以上说法均错误19、如图5：关于此系统，下列说法正确的是：A．一个油口进油，两个油口回油属于轻载运行，输出扭矩较小B．重载和轻载时油泵的最大输出功率相同C．在重载时用轻载档，因油马达排量太大，安全阀可能因为工作油压过高而开启D．A+B（图6）20、如图6在本系统中元件4的作用是________。

中华人民共和国海事局2008年第6期海船船员适任证书全国统考试题（总第46期）科目：海上货物运输试卷代号：952适用对象：无限、近洋、沿海航区船舶二/三副(本试卷卷面总分 100 分，及格分为 70 分，考试时间 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，在相应位置上用 2B 铅笔涂黑。

第 1 题至 100 题，每题 1 分（题干后标的数字为新题库中的编号）1.当船舶某装载状态下某处水线达到水尺标志的数字的______时，则该处的吃水为该数字加上10 cm。

27A. 顶边缘B. 顶边缘C. 中间D. 1/3处2.某轮首、中、尾吃水分别为6.45m、6.60m、6.50m，且存在拱垂，则其平均吃水为______m。

17A. 6.60B. 6.57C. 6.48D. 3.253.船舶资料中列出的满载排水量通常是指： 168A. 冬季排水量B. 夏季排水量C. 热带排水量D. 淡水排水量4.对一般干散货船而言，表征其重量性能的指标有： 173A. 净吨B. 总吨C. 舱容系数D. 载重量5.固体散货船载货能力中的容量能力是指： 210A. 舱柜容积B. 液舱舱容C. 散装舱容D. 包装舱容6.舱容系数较大的船舶，装运密度______的货物易达到满舱满载。

249A. 大B. 小C. 中等D. 无法确定7.船舶静水力曲线图是表示船舶正浮状态下的______与吃水的关系曲线的总称。

Ⅰ船型系数；Ⅱ静稳性要素；Ⅲ浮性要素、初稳性要素 252A. Ⅰ、ⅡB. Ⅱ、ⅢC. Ⅰ、ⅢD. Ⅰ、Ⅱ、Ⅲ8.船舶少量装载时，可用_______来计算吃水改变量。

306A. 厘米纵倾力矩B. 厘米吃水吨数C. 初稳性高度D. 静稳性力臂9.某轮排水量为19000t，TPC为24t/cm，到港时船舶平均吃水减小0.2m，则到港时排水量_______吨。

317A. 18520tB. 16600tC. 15200tD. 11800t10.一般用______表示船舶储备浮力的大小。

中华人民共和国海事局2008年第6期海船船员适任证书全国统考试题(总第46期)科目：轮机英语试卷代号：801适用对象：无限、近洋航区3000KW及以上船舶轮机长（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. Medium speed engines have a power to weight ratio than the slow speed two strokes, but due tothe higher speeds tend to have _____ maintenance intervals.A. higher/reducedB. higher/increasedC. lower/reducedD. lower/increased2. One method of constructing large marine diesel engines and reducing the total engine frame weightis through .A. casting interlocking componentsB. welding plates to form sections for assemblyC. forging integral componentsD. case hardening integral components3. A supercharged diesel engine, when compared to a similar naturally aspirated diesel engine, willdevelop an increase in ______.A. ignition lagB. engine horsepowerC. lube oil system pressureD. specific fuel consumption4. The minimum fuel oil delivery pressure required for diesel engine injection depends primarily onthe .A. degree of cylinder air turbulenceB. firing pressure in the engineC. quality of fuel to be injectedD. duration of the ignition delay period5. Increased air will raise scavenge efficiency and allow a greater mass of air to be compressed;more fuel may now be burned giving an increased power.A. specific volumeB. densityC. viscosityD. calorific value6. Which of the following methods is used to prevent throttling of compressed air through the dieselengine air starting valves?A. Holding the valve open for a long periodB. Increasing the starting air pressure usedC. Opening the starting air valve quicklyD. Reducing the starting air valve size7. As engine running speed is increased from idle speed to full load speed, which of the conditionslisted will decrease?A. Compression ratioB. Fuel/Air ratioC. Compression pressureD. Lube oil pressure8. Before being shut down, a diesel engine should idle a few minutes in order to .A. prevent governor surging at shutdownB. make sure the fuel nozzles are flushed cleanC. prevent pressure buildup in the fuel linesD. prevent damage from localized overheating9. A high temperature alarm or ___ which will melt is used to guard against the explosion ofcompressor air pipelines.A. a flame trapB. a relief valveC. a fusible plugD. a bursting cap10. On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measuredby using a/an .A. dial indicatorB. outside caliperC. bridge gageD. tram rod 11. Persistent knocking in one cylinder of an eight cylinder diesel engine would MOST likely becaused by .A. using fuel oil with low cetane numberB. a badly worn piston pinC. a loose flywheel keyD. a loose bed plate bolt12. A faulty injector in one cylinder of an operating diesel engine can be detected by .A. cutting out individual injectors and noting engine performanceB. checking lube oil temperatures,C. checking cam positionD. using a timing light13. Excessive lubricating oil consumption in a running diesel engine can be caused by .A. clogged lube oil pipingB. excessive valve-guide clearanceC. high lube oil viscosityD. low lube oil temperature14. When oil vapor, oxygen and hot spots are present at the same time within a crankcase, which of thefollowing hazards could develop?A. ExplosionB. ImplosionC. MisfireD. Dieseling15. If some of the cylinders are not firing, the ones affected may be determined by watching .A. the exhaust temperatureB. the exhaust pressureC. the governorD. the fuel flow meter16. What is the function of the main thrust bearing?A. Prevents lateral movement of the slow speed gear.B. Transmits propeller thrust to the hull.C. Keeps spring bearings in line.D. Prevents main reduction gear axial movement.17. of the controllable pitch propeller enables the blades to be moved to change the pitch angle.A. An external mechanismB. An internal mechanismC. An interlock deviceD. A hunting gear system18. When ship navigating in rough sea, the first measure taken by the chief engineer to prevent theoverload should be .A. cleaning fuel oil, lubricating oil and seawater filtersB. reducing fuel feeding of the main engine appropriately or reducing the pitch angle of propellerC. using low sea chestD. closing the skylight and the ventilation opening which doesn't affect the normal work ofequipments19. If anything abnormal be found on the load change of main engine when the ship is entering inshallow waterway, before taking measures the engineer on duty should .A. stop main engine immediatelyB. ask the captain and the chief engineer's permission for stopping the engineC. inquire the bridge for the situation initiativelyD. stop engine and inform bridge20. Pitted reduction gear teeth having a deep blue color with evidence of overheating have beenoperated with .A. excessive speedB. improper warm-upC. extreme misalignmentD. inadequate lubrication21. The fuel oil supply system to an automatic auxiliary boiler, will automatically shutdown if theboiler .A. steam demand is highB. salinity is highC. safety valve simmersD. burner flame is extinguished22. Improper maintenance of the fuel oil burners in an automatically fired auxiliary boiler could resultin ______.A. creased fuel consumptionB. increased feed-water consumptionC. fuel pump failureD. combustion control system failure23. Black smoke coming from a boiler can be usually caused by .A. low water levelB. low oil pressureC. excessively high fuel pressure D an improper air/fuel ratio24. A screw pump belongs to _____ according to its working principle.A. reciprocating pumpsB. positive displacement pumpsC. centrifugal pumpsD. centripetal pumps25. A pump shaft that is bent or distorted should normally be .A. repaired by a suitable welding processB. straightened by applying heat and torsionC. reconditioned by metallizing and machiningD. replaced with a satisfactory spare26. The latent heat of evaporation is dissipated in the ____ in a compression refrigeration system.A. evaporatorB. condenserC. expansion valveD. compressor27. When checking the oil level in a refrigeration compressor, the most accurate reading isobtained .A. immediately after purgingB. immediately after chargingC. after being secured for 3 hours with the sump heater secured immediatelyD. after shutdown following a prolonged period of operation28. As the amount of moisture in the air increases, the difference between the dry bulb and wet bulbtemperatures will .A. increaseB. decreaseB. remain unchanged D. be greatest at dew point29. Badly leaking refrigeration compressor discharge valves will cause .A. overfeeding of the expansion valveB. damage to the condenserC. constant running of the compressorD. flooding of the receiver30. A pressure drop through the refrigerant liquid line may cause .A. solenoid valve to seizeB. compressor to huntC. formation of flash gas in the liquid lineD. expansion valve to freeze open31. Which of the following is wrong about operation of oily water separator?A. filled with clean water before operationB. keep air cushion in oil collecting space during runningC. check oil level during runningD. clean inner separator with low pressure steam32. Which of the following would not be burnt in an incinerator (not ratified by IMO) on board.A. waste oilB. waste clothesC. oil ragsD. PVC garbage33. In order to culture and propagate bacteria enough to treat the body and galley wastes, .A. A new bacteria colony should be put into the plant in advanceB. The disinfection chemicals should be always usedC. The air blower should be started and keep running in advanceD. The nutrient for the bacteria should put into the plant in advance34. Which of the listed substances can be satisfactorily removed from diesel fuel by centrifuging?A. SludgeB. GasolineC. Fuel oilD. Lube oil35. can cause oil flow from water outlet of the oil purifier.A. Oil inlet valve opening too quicklyB. Oil temperature little higher than normalC. Diameter of gravity disc too smallD. Viscosity of oil little lower than normal36. The second stage feed-water temperature and shell absolute pressure in a multistage, flash type,distilling plant is .A. higher than the first stage feed-water temperature and absolute shell pressureB. lower than the first stage feed-water temperature and absolute shell pressureC. the same as the first stage feed-water temperature and absolute shell pressureD. not related to the feed-water temperature and absolute shell pressure37. The symbol (GB786.1-93) represents .A. overflow valveB. reducing valveC. relief valveD. sequence valve38. In a general cargo crane, is fitted to raise or lower the jib.A. the slewing motorB. the luffing motorC. the hoisting motorD. the fan motor39. The cable lifter, mooring drum and warp end of a split windlass may be separately engaged ordisengaged by means of a .A. dog clutchB. pair of gearsC. worm gearD. turning gear40. Air trapped in the hydraulic fluid of a steering system may be indicated by .A. the steering pumps overspeedingB. a jammed open relief valveC. a constantly occurring improper rudder responseD. excessive ram pressure41. If you install a new hydraulic hose in a hydraulic system, the hose must be long enough to allowfor contraction to prevent .A. failure of the hydraulic hoseB. excessive flow through the lineC. friction in other areas of the hydraulic systemD. overheating of the hydraulic fluid42. The current flowing first in one direction and then in another is called current.A. an alternatingB. a rushC. a directD. an exciting43. An electrical device which employs a stationary armature and a rotating electromagnetic field isused aboard as a .A. magnetic amplifierB. ship's service alternatorC. three-wire DC generatorD. saturable core reactor44. The operation of two alternators requires the voltages to be equal and also in phase.A. parallelingB. series-mountingC. runningD. controlling45. The frequency of an alternator is controlled from the main switchboard by adjusting the .A. frequency meterB. voltage regulatorC. governor controlD. synchroscope switch46. Electrical supply is always needed even if only for lighting so after a ship goes into service it isextremely rare for the main bus-bars to be dead, it therefore follows that the bus-bars arecontinuously alive __ the life of the ship.A. alongB. offC. throughoutD. for47. Insulation indicating light is located on of main switchboard.A. Paralleling panelB. Load panelC. Emergency generator control panelD. Main generator control panel48. is not installed on the emergency switchboard.A. AmmeterB. VoltmeterC. WattmeterD. Synchroscope49. Any electric motor can be constructed to be .A. short proofB. ground proofC. explosion proofD. overload proof50. The part of a fuse that melts and opens the circuit is made of .A. copper and antimonyB. steel and babbittC. aluminum or beryllium alloyD. zinc or an alloy of tin and lead51. The overcurrent relay ____ the motor contactor when the motor exceeds its rated current.A. connectsB. tripsC. foulsD. destructs52. Universal motors will operate on AC or DC current, and are generally found in .A. portable toolsB. large pump motorsC. turbo electric main motorsD. forced draft fans53. The electrolyte in a lead-acid storage battery consists of distilled water and .A. hydrogen chlorideB. calcium chlorideC. sulfuric acidD. muriatic acid54. The control mode where the position of the final control element has a linear relationship with theposition or value of the controlled variable is known as .A. two position controlB. proportion controlC. reset controlD. rate control55. You must take good care of the drainage cock of the air control system. Because ____ leads scaleformed which might malfunctions the pilot control valve and other instruments.A. the temperatureB. the rustC. the pressureD. the humidity56. If both the 'high level' and 'low level' alarms come on for the same address of a centralized controlconsole, the most likely problem is a/an _______.A. sensor failureB. failed alarmC. low levelD. extremely high level57. When the ship, its main propulsion device equipped with clutch, arrived at the port and finishedwith the engine, the correct operation should be .A. disengaging the clutch firstly, then stopping the main engineB. stopping the main engine firstly, then disengaging the clutchC. stopping the cooling water pump firstly, then stopping the main engineD. stopping the main engine and disengaging the clutch at the same time58. During the diesel engine running period, the water level of F.W. expansion tank should normallykept at the _____ level of glass tube.A. highestB. above 3/4C. 1/2~3/4D. lowest59. A tank which has been sealed for a long period of time can be dangerous because .A. steel surfaces consume oxygen by rustingB. Sealed tanks usually form a vacuumC. moisture condenses in the tank, displacing the oxygenD. most tank coatings give off poisonous vapors in the presence of moisture60. Which of the listed classes of fire would most likely occur in the engine room of a vessel?A. Classes A and BB. Classes B and CC. Classes C and DD. Classes A and D61. Combustible material stored in a compartment adjacent to a compartment where there is a fire maybe ignited. This ignition can occur by .A. heat convection through the adjacent bulkheadsB. combustion gases carried through the ventilation systemC. direct convection of the heat emitted by the adjacent fireD. heat radiated from the deck or bulkhead by the adjacent fire62. One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is .A. the 'snow' which is sometimes discharged along with the gas is toxicB. prolonged exposure to high concentrations of CO2 gas causes suffocationC. rapid dissipation of the CO2 vaporD. the CO2 gas is lighter than air and a large amount is required to extinguish a fire near the deck63. A combination combustible gas and oxygen indicator is an instrument that measures the .of both combustible gas and oxygen; each is indicated o/n a separate meter.A. puritiesB. combinationsC. concentrationsD. filters64. Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicatorand a/an .A. Orsat apparatusB. flame safety lampC. Halide torchD. combustible gas indicator65 .When you notice oil on the water near your vessel while taking on fuel, you should FIRST .A. give signal for stopping loadingB. notify the senior deck officerC. notify the terminal superintendentD. determine whether your vessel is the source66. After receiving the stores, you should sign on the .A. engine logbookB. delivery docketC. store listD. maintenance book67. Reheating a hardened component to a temperature lower than the hardening temperature and thencooling it is known as .A. low temperature hardeningB. case hardeningC. annealingD. tempering68. When a vessel is in dry-dock, the vessel's engineers should .A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging69. During sea trial, the main engine should be kept run ahead 4h continuously at __ n H(the ratedspeed).A. 100%B. 110%C. 85%D. different70. In the initial survey, compiles the survey report and fills in certificate.A. surveyorB. chief engineerC. administratorD. company superintendent71. The approval period for a shipboard oil pollution emergency plan expires after .A. one yearB. two yearsC. four yearsD. five years72. The core item in the Oil Record Book Part I is , and its main content is .A. Item A, BALLAST OR CLEANING OF FUEL OIL TANKSB. Item B, DISCHARGE OF DIRTY BALLAST OR CLEANING WATER FROM FUEL OILTANKS REFERRED TO UNDER SECTION(A)C. Item C, DISPOSAL OF OIL RESIDUES(SLUDGE)D. Item H, BUNKERING OF FUEL OIL73. Which one is NOT the 'clear grounds' for a more detailed inspection during PSC inspection?A. absence of engine log bookB. serious corrosion on the hullC. one page missing in the oil record bookD. paint peeling off some tailings in engine rooms74. The fire drill must, as far as practicable, be conducted as if .A. there is a minor emergencyB. there is an actual emergencyC. there were a minor emergencyD. there were an actual emergency75. The Convention is the first to establish basic requirements on training, certification and watch-keeping for seafarers on an international level.A. STCW78B. STCW95C. SOLAS74D. SOLAS8876. During an engine room watch if immediate action is necessary to ensure safety of the ship, itsmachinery and crew .A. the chief engineer must be informed at firstB. the captain must be informed at firstC. it must be taken by the duty engineerD. the generator engine must be stopped77. When anchoring in unshelter anchorage, chief engineer should consult with captain .A. if the ship must be stand byB. if take bunkeringC. if keep-watching as in voyageD. if the ship must anchor two anchors78. The term 'oil', as used in the Pollution Prevention Regulations, means .A. fuel oil onlyB. crude oil onlyC. liquefied petroleum gasD. petroleum oil of any kind79. If it becomes necessary to pump bilges while a vessel is in port, which of the following proceduresshould 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.80. SOLAS Stands for the International Convention .A. for the Safety of the Life at SeaB. for the Prevention from shipsC. on Standards of Training, Certification and Watchkeeping for SeafarersD. for the Control and Management of Ship's Ballast Water and Sediments81. To ensure the safe operation of each ship and to provide a link between the Company and those onboard, every Company, as appropriate, should designate a person or persons ashore having direct to the highest level of management.A. spaceB. distanceC. visibilityD. access82. Under the terms of ISPS Code, shipping companies are required to designate a Company SecurityOfficer for the Company and a for each of its ships.A. Ship Security OfficerB. Designated Person AshoreC. Internal AuditorD. Patrol Team二、关联题（关联题题干下有4个小题，每小题4个选项）第一组：In common rail diesel engines fuel is injected into all the cylinders via a 'common rail'. The generation of pressure and injection of fuel are not interconnected in a common rail system. Unlike in conventional systems, the injection pressure is independent of the engine speed. Thus there is always full pressure available. The fuel is first stored in the fuel line and then, when a signal is given by the engine controls to the magnetic valves, it is injected into the cylinders. This creates an extremely fine fuel-air mixture which burns particularly efficiently. For the engineers at MAN B&W Diesel the challenge was to apply this injection system to large marine engines - and to adapt it for operation on heavy fuel oil, which means dealing with a fuel heated to approx. 150℃.Reliability and durability are an absolute necessity in engines on sea-going vessels. For this reason the new MAN B&W Diesel common rail engine is especially designed for reliability. The whole system, including the electronic controls is fully redundant, i.e. every major function has a back-up. Thus there are at least two high-pressure pumps to every machine, ensuring that the pressure necessary for fuel injection is available, even if one pump fails. Unlike in most other common rail engines, the MAN injection system is based on conventional pressure-controlled injection. In conventional stroke controlled systems which function with pilot and post-injection, there is a permanently high pressure of 1600 bar, for example, at the needle seat near the combustion chamber. In the MAN B&W system, the pressure on the valve needle is released by means of the solenoid valve controls which is located away from the cylinder !lead, at the common rail accumulator. As a result there is not permanently full pressure on the valve needle seat next to the combustion chamber and the electronic components are protected.By means of CR injection it is possible to control combustion precisely and in within the operating range of the engine flexibly. This lowers the fuel consumption. Optimistic fuel injection also diminishes combustion noise and the exhaust mission of pollutants. Thus soot emission at part loads is for example reduced to a level below the visibility limit. This is becoming increasingly significant in marine applications as the pollutant emission limits are becoming increasingly stringent worldwide. In particular, start-up soot should be avoided. Common rail technology proves a particular advantage at low speeds and when operating conditions change fast, for example in suction dredgers or in cruise liners traveling very slowly in coastal waters.83. Regarding to the common rail system, which statement is NOT true?A. The injection pressure has nothing to do with the engine speedB. The CR used in MAN B&W Diesel engines can deal with heavy fuel oil.C. If electronic controls being used are break down, the whole common rail system will be paralysedD. There are two high-pressure pumps in CR engines.84. Which one is NOT a feature of CR system?A. Main functions have stand-by equipmentsB. Easy to operateC. No combustion noise and low emissionD. Easy to control in different working conditions85. The fuel injection in CR system is .A. stroke-controlledB. pressure-controlledC. speed-controlledD. load-controlled86. According the writer's view, the CR system is most suitable for .A. ocean-going shipsB. suction dredgersC. merchant fleetsD. no information given第二组：The sewage treatment system must be capable of discharging an effluent that comes within the limits of the tests. Sewage can be treated biologically so that it may be discharged with minimal damage to ecosystem. Biological treatment involves the use of living organisms to treat the sewage within the sewage treatment plant so the liquids and sludge discharged are within the standards specified.Biological treatment plants are usually built up as a module and consist of various sections.Waste matter collected from the ships sanitary appliances is led through a sanitary piping system to the treatment module. The solid matter is broken up by passing it through a screen or a series of revolving cutters. The broken up solid material, together with the waste liquid, passes into a tank containing bacteria which require oxygen and a nutrient to propagate. The nutrient is contained in the solid waste material, and oxygen is supplied by bubbling compressed air through the broken up waste. The propagated bacteria change the waste material into a sludge by aerobic digestion. The sludge is finally treated to kill the coliform bacteria before it is passed overboard.When a biological sewage plant is started up, such as when activating a new ship or after cleaning out the tank, a pellet containing bacteria is introduced into the tank. It takes approximately one week for the bacteria to propagate and make the system fully effective. The choice of sanitary appliance cleaners requires extreme care, as many cleaners are toxic to the active bacteria. Once a biological sewage plant is made active it should not be shut down. If it is it will have to be reactivated again because the bacteria will die without a supply of nutrients and oxygen.Bacteria that require oxygen for their survival are referred to as aerobic. Aerobic bacteria are normally used in ships' sewage treatment equipment. Other forms of bacteria that do not require oxygen are referred to as anaerobic. Anaerobic bacteria are used in shore based sewage treatment works where methane is obtained as a by-product for use as fuel.87. This passage is mainly about .A. sewage treatment methodsB. the various sections of a sewage treatment plantsC. biological sewage treatment systemD. how the sewage treatment plants are started up88. Biological treatment may use __ to treat sewage.(1)living organisms (2)chemicals (3)additivesA. (1)B. (2)C. (3)D. (1)(2)(3)89. Sanitary waste matter will .(1)pass through a screen or cutters (2)come into contact with thebacteria in a tank (3)be discharged, normally without bacteriaA. (1)B. (1)(2)C. (2)(3)D. (1)(2)(3)90. According to the passage, the screen or cutters are fitted to __ (1)kill bacteria (2)break up thesolid waste (3)remove solid matter with large sizeA. (1)B. (2)C. (2)(3)D. None of (1)(2)(3) is true.第三组：For a certain provision cooling plant, the capacity regulator is generally controlled depending on pressure, temperature or relative humidity. The pulse emitter is therefore either a pressostat, thermostat or hygrostat. The switching difference of the control units should be rate as large as possible. This applies in particular to control by means Of the pressure, because change to the load in the refrigeration circuit results in relatively quick pressure changes compared to temperature, which can in mm lead to inadmissible oscillation of the regulator.Under partial load, the suction volume and. thus the gas speedcan undergo marked changes depending on the regulation stage.For this reason, the rating and routing of the suction line must begiven particular attention. In order to guarantee sufficient oilreturn, neither full load nor partial load operation may allow thegas speed to fall below a minimum level: 4 m/s in horizontal pipesections; 8 m/s in vertical pipes.For this reason we recommend that vertical pipes be staggeredinto two separate sections (as illustration). As a result of thefalling suction gas speed velocity in partial load operation, the pipe elbow B is blocked by an accumulation of oil. This increases the gas velocity in pipe section A. In order to guarantee adequate oil return, both cross sections must 'be rated so large that the velocity does not fall below the minimum level in full and partial load operation. In plants with extensive pipe systems it is recommended at least for R22 and NH3 to install an additional oil separator.This reduces the oil circulation period and can have positive effects above all for cold starts with relatively high oil ejection.1. According to paragraph 1, if the pulse emitter were a pressostat and its switching difference were set smaller than normal, what would occur for a certain provision cooling plant?A. liquid stroke in compressor during start upB. capacity regulator oscillationC. compressor starts and stops too oftenD. compressor fails to start2. What is the main factor that affecting the oil return from the suction line?A. the load of refrigerating compressorB. the suction volume of refrigerating compressorC. the refrigerant gas speed in suction lineD. the capacity of refrigerating compressor3. According to the passage, which of the following statements is NOT true?A. the oil return is relative easy under partial loadB. the oil return is relative easy under full loadC. the refrigerant gas speed is higher under full loadD. the pipe elbow B is blocked by an accumulation of oil under partial load4. When the refrigerating plant is under full load, the refrigerant gas can return to the compressor through .A. the pipe elbow AB. the pipe elbow BC. both A and BD. either A or B。

海船船员考试：船舶辅机(大管轮)题库五1、单项选择题（江南博哥）船舶蒸汽总分配联箱上有通船舷的管路，主要是用于（）。

A.应急时人工泄放蒸汽B.安全阀开启时自动泄放蒸汽C.厂修期间必要时由厂方供汽D.蒸汽灭火用答案：C2、单项选择题当热能和机械能发生转变时，可获得最大可用功的过程是（）。

A.准静态过程B.平衡过程C.绝热过程D.可逆过程答案：D3、单项选择题理想气体定压比热与定容比热之比为（）。

A.大于1B.等于1C.小于1D.大于等于1答案：A4、单项选择题kJ／kg是（）的单位。

A.压力B.内能C.比容D.比内能答案：D5、单项选择题氟利昂制冷装置冷冻机油敞口存放最担心的是；（）。

A.混入杂质B.氧化变质C.混入水分D.溶入空气答案：C6、单项选择题伸入水银中的开口玻璃管由于表面张力作用，因而管内液面比管外液面（）。

A.高B.低C.水平一致D.A或B答案：B7、单项选择题连通器中同（）平面上各点的流体静压力。

A.一定相等B.一定不相等C.不一定相等D.以上说法都不对答案：C8、单项选择题起重机构阀控型闭式液压系统与泵控型闭式系统相比，以下说法中错误的是（）。

A.前者用阀换向，后者用泵换向B.前者可节流调速，后者是容积调速C.重物下降时全都用再生限速，向泵反馈能量D.都无须设限速阀件答案：C9、单项选择题有可能需要采用恒功率泵的液压甲板机械是（）。

A.舵机B.起货机C.锚机D.绞缆机答案：B10、单项选择题泵控型半闭式系统补油量多少由（）决定。

A.补油泵溢流阀整定压力B.主泵泄油管路背压阀整定压力C.A—BD.B—A答案：C11、单项选择题舵机液压主泵不能回中时，会造成（）。

A.冲舵B.跑舵C.空舵D.A与B答案：A12、单项选择题防止液压泵产生故障的管理措施主要应放在（）。

A.降低泵的吸入压力B.降低泵的工作压力C.控制液压油的污染度D.降低工作温度答案：C13、单项选择题下面液压控制阀中需外卸的阀是（）。

中华人民共和国海事局2008年第6期海船船员适任证书全国统考试题（总第46期）科目：海上货物运输试卷代号：952适用对象：无限、近洋、沿海航区3000总吨及以上船舶二/三副(本试卷卷面总分100分，及格分为70分，考试时间100分钟)1.当船舶某装载状态下某处水线达到水尺标志的数字的______时，则该处的吃水为该数字加上10 cm。

A. 顶边缘 B. 顶边缘 C. 中间 D. 1/3处2.某轮首、中、尾吃水分别为6.45m、6.60m、6.50m，且存在拱垂，则其平均吃水为______m。

A. 6.60B. 6.57C. 6.48D. 3.253.船舶资料中列出的满载排水量通常是指：A. 冬季排水量B. 夏季排水量C. 热带排水量D. 淡水排水量4.对一般干散货船而言，表征其重量性能的指标有：A. 净吨B. 总吨C. 舱容系数D. 载重量5.固体散货船载货能力中的容量能力是指：A. 舱柜容积B. 液舱舱容C. 散装舱容D. 包装舱容6.舱容系数较大的船舶，装运密度______的货物易达到满舱满载。

A. 大B. 小C. 中等D. 无法确定7.船舶静水力曲线图是表示船舶正浮状态下的______与吃水的关系曲线的总称。

Ⅰ船型系数；Ⅱ静稳性要素；Ⅲ浮性要素、初稳性要素A. Ⅰ、ⅡB. Ⅱ、ⅢC. Ⅰ、ⅢD. Ⅰ、Ⅱ、Ⅲ8.船舶少量装载时，可用_______来计算吃水改变量。

A. 厘米纵倾力矩B. 厘米吃水吨数C. 初稳性高度D. 静稳性力臂9.某轮排水量为19000t，TPC为24t/cm，到港时船舶平均吃水减小0.2m，则到港时排水量_______吨。

A. 18520tB. 16600tC. 15200tD. 11800t10.一般用______表示船舶储备浮力的大小。

A. 稳性B. 纵向强度C. 干舷D. 吃水差11.木材船的夏季木材载重线_______其载运非木材货所使用的夏季载重线。

A. 稍低于B. 稍高于C. 等于D. 不能确定12.航行于热带季节区域的货船，允许使用_______带载重线。

中华人民共和国海事局2008年第6期海船船员适任证书全国统考试题（总第46期）科目：海上货物运输试卷代号：952适用对象：无限、近洋、沿海航区3000总吨及以上船舶二/三副(本试卷卷面总分100分，及格分为70分，考试时间100分钟)1.当船舶某装载状态下某处水线达到水尺标志的数字的______时，则该处的吃水为该数字加上10 cm。

A. 顶边缘 B. 顶边缘 C. 中间 D. 1/3处2.某轮首、中、尾吃水分别为6.45m、6.60m、6.50m，且存在拱垂，则其平均吃水为______m。

A. 6.60B. 6.57C. 6.48D. 3.253.船舶资料中列出的满载排水量通常是指：A. 冬季排水量B. 夏季排水量C. 热带排水量D. 淡水排水量4.对一般干散货船而言，表征其重量性能的指标有：A. 净吨B. 总吨C. 舱容系数D. 载重量5.固体散货船载货能力中的容量能力是指：A. 舱柜容积B. 液舱舱容C. 散装舱容D. 包装舱容6.舱容系数较大的船舶，装运密度______的货物易达到满舱满载。

A. 大B. 小C. 中等D. 无法确定7.船舶静水力曲线图是表示船舶正浮状态下的______与吃水的关系曲线的总称。

Ⅰ船型系数；Ⅱ静稳性要素；Ⅲ浮性要素、初稳性要素A. Ⅰ、ⅡB. Ⅱ、ⅢC. Ⅰ、ⅢD. Ⅰ、Ⅱ、Ⅲ8.船舶少量装载时，可用_______来计算吃水改变量。

A. 厘米纵倾力矩B. 厘米吃水吨数C. 初稳性高度D. 静稳性力臂9.某轮排水量为19000t，TPC为24t/cm，到港时船舶平均吃水减小0.2m，则到港时排水量_______吨。

A. 18520tB. 16600tC. 15200tD. 11800t10.一般用______表示船舶储备浮力的大小。

A. 稳性B. 纵向强度C. 干舷D. 吃水差11.木材船的夏季木材载重线_______其载运非木材货所使用的夏季载重线。

A. 稍低于B. 稍高于C. 等于D. 不能确定12.航行于热带季节区域的货船，允许使用_______带载重线。

中华人民共和国海事局2008年第6期海船船员适任统考试题（总第46期）科目：航海学试卷代号：913．适用对象：无限航区3000总吨及以上船舶二／三副（本试卷卷面总分100分，及格分为70分，考试时间100分钟）答题说明：本试卷试题均为单项选择题，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。

每题1分，共100分。

答题说明：本试卷试题均为单项选择题、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。

每题1分，共100分。

1．航海学中的地球形状用来描述。

A.地球自然表面围成的几何体B.大地球体C.地球椭圆体D.地球圆球体2．某船由30ºS，60ºW航行至40ºS，120ºW，则该船经差和纬差的方向分别为：A．E经差、N纬差 B．W经差、S纬差 C．E经差、S纬差 D．W经差、N纬差3．下列哪项是建立大地坐标系时应明确的问题？Ⅰ、确定椭圆体的参数；Ⅱ、确定椭圆体中心的位置；Ⅲ、确定坐标轴的的方向A．Ⅰ、Ⅱ B．Ⅰ、Ⅲ C．Ⅱ、Ⅲ D．Ⅰ、Ⅱ、Ⅲ4．半圆周法方向换算为圆周法方向的法则是。

Ａ．在SE半圆，圆周度数等于180°加上半圆度数Ｂ．在NE半圆，圆周度数等于360°减去半圆度数Ｃ．在SW半圆，圆周度数等于180°减去半圆度数Ｄ．在NW半圆，圆周度数等于360°减去半圆度数5．某船真航向120°，该船左舷160°某物标的真方位为。

A．40°B．040°C．320°D．280°6．某轮陀罗航向300°，陀罗差2°E，则左正横处物标的真方位是：Ａ．210°Ｂ．208°Ｃ．212°Ｄ．270°7．当船舶转向时，下列哪些随之发生改变？I．真方位 II. 罗方位 III. 磁方位 IV. 舷角Ａ．I、II Ｂ．III、IV Ｃ．I、III Ｄ．II、IV 8．某船沿极圈（66°33＇N）航行，已知计程仪改正率为0.0%，无航行和推算误差，则实际船位比在海图上按计程仪航程推算的推算船位（不考虑风流影响）。

大管轮测试题目大管轮测试题目1. 做大管轮多少资历。

2. 请问您做过船的最大吨位和功率是多少。

3. 请问您都做过那些主机，说明具体的类型。

4. 对于主机或发电机您都做过那些大的工程。

5. 是否有能力领导主持主机或发电机吊缸工作。

6. 是否拆取过主轴承下瓦7. 是否测量过主机正倒车推力块间隙8. 是否拆卸过发电机增压器轴承9. 尾轴管滑油尾封柜为什么没有低位报警。

10. 尾轴管滑油首封柜为什么没有高位报警。

11. 尾轴接地装置的作用是什么12. 是否经历过不吊缸拆过填料函13. 是否经历过发电机换曲轴14. 是否经历过发电机换凸轮轴15. 是否经历过发电机换凸轮16. 是否会调整发电机凸轮轴定时17. 是否能检修主机增压器（自润滑式/ MET/NET系统油润滑式）18. 是否能检修过发电机增压器（VTRBBC系列 / RH 系列）19. 能否检修冰机或空调压缩机20. 是否会加装冷剂 / 加装冷冻机油21. 是否会调整冰机膨胀阀 / 蒸发压力22. 是否冲洗过锅炉压差传送器23. 船上的主机或辅机自动冲洗二级燃润油滤器，如果压差冲洗故障，您怎么办？24. 怎样判断主机气缸油的注油量是否合适？25. 备车时，冲车没有反应怎么办？26. 备车，冲车，试车都正常，但是，第一个车没有来，怎么办？27. 有时候离港时，第一个车会出现铿锵声，是什么原因？28. 港内停车时，各个缸排气温度表的读数不一样，为什么？29. 主机排气阀的研磨如何进行，阀杆从哪个方向开始？30. 主机排气阀的研磨如何进行，阀座从哪个方向开始？31. 主机换下来的油嘴或者用过的油嘴如何存放？32. 航行中，主机负荷表摆动是为什么？33. 主机气缸水压力表摆动是为什么？34. 吊缸时，主机油头取不出来，怎么办？35. 吊缸结束后，液压控制排气阀，如 B&W / UEC,控制空气和润滑油谁先开启，为何？36. B&W 主机拆装排气阀注意事项？37. 你如何制作机舱维修保养计划？38. 尾轴首封柜低位报警，为什么？怎么办？39. 尾轴尾封油柜高位报警，什么原因，怎么办，为何没有低位报警？40. 主机油底壳油位不正常降低是什么原因，怎么办？41. 主机油底壳油位不正常升高是什么原因，怎么办？42. 清洁扫气箱时，是否可以用辅助风机来冷却？为什么？43. 如何测量活塞销？44. 如何测量曲拐销轴径？45. 气缸套磨损后，气缸油注油槽如何变化？46.连杆大端间隙如何测量？47. 连杆小端间隙如何测量？48. 十字头轴承间隙如何测量？49. 主机启动空气系统的安全膜片破损，如何采取紧急措施？50. 如何测量活塞头的烧蚀程度？。

中华人民共和国海事局2008年第6期海船船员适任统考试题(总第46期)科目：船舶管理试卷代号：882适用对象：750KW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100分钟）答题说明：本试卷试题均为单项选择题，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。

每题1分，共100分。

1.目前海船上广泛使用球鼻型船首，不属于球鼻型船首优点的是：A.减少兴波阻力B.减小形状阻力C.制造工艺简单D.减小形状阻力和兴波阻力2.保证船体横向强度的构件是：A.肋骨，肋板，横梁B.强力甲板，龙骨和舭肘板C.舭龙骨，舭肋骨D.船底板，纵骨，横梁3.船中处于波峰时，船舶的变形使：A.甲板和船底受拉伸B.甲板和船底受压缩C.甲板受拉伸，船底压缩D.甲板受压缩和船底受拉伸4.船体抵抗总弯曲力矩和剪力作用的的能力，称为：A.横向强度B.局部强度C.扭转强度D.总纵弯曲强度5.在舷侧竖向布置的角钢构件称为：A.甲板纵骨B.甲板横梁C.肋骨D.舱壁扶强材6.燃油系统滤器堵塞的现实表现为：A.滤器前燃油压力急剧升高B.滤器前后燃油压力差增大C.滤器后燃油压力急剧升高D.滤器前后压力差变小7.水密横舱壁的设置数目主要是根据等因素来决定的。

Ⅰ、水密分舱Ⅱ、机舱的位置和货舱的长短Ⅲ、船体强度的要求Ⅳ、驾驶室的位置Ⅴ、增加货舱数目Ⅵ、分隔货物种类A.Ⅰ+Ⅱ+ⅤB.Ⅰ+Ⅲ+ⅥC.Ⅱ+Ⅲ+Ⅳ+ⅤD.Ⅰ+Ⅱ+Ⅲ8.按规范规定，要求油舱和油、水柜的溢流管截面积不小于注入管的。

A. 1.2倍B. 5倍C. 1.25倍D. 1.6倍9.船体水下体积形状的中心称为：A.漂心B.浮心C.重心D.稳心10.船舶由淡水水域驶入海水水域，吃水的变化是：A. 减少B. 增加C. 不变D. 变化不定11.处于稳定平衡状态时船舶稳心和重心相互间位置是：A稳心在重心之下B稳心在重心之上C稳心与重心重合D在同一水平面上12.船舶在大量卸货过程中，若保持重心高度不变，问卸货后的初稳性高度比卸货前的是：A增大B减小C不变D不确定13.自由液面越大，对稳性的影响：A越大B越小C不变D不定14.船舶的抗沉性主要研究的是以下那一类情况的浸水？Ⅰ、舱室顶部水密且位于水线以下，船体破损后整个舱室充满水Ⅱ、舱室顶部在水线以上，舱内与舷外水不相通，水未充满整个舱室Ⅲ、舱室顶部位于水线以上，舱内与舷外水相通A.ⅠB.ⅡC.ⅢD.Ⅰ、Ⅱ、Ⅲ都不对15.若进水面积较大，可后再做内堵处理。

中华人民共和国海事局2008年第6期海船船员适任证书全国统考试题（总第46期）科目：海上货物运输试卷代号：952适用对象：无限、近洋、沿海航区3000总吨及以上船舶二/三副(本试卷卷面总分100分，及格分为70分，考试时间100分钟)1.当船舶某装载状态下某处水线达到水尺标志的数字的______时，则该处的吃水为该数字加上10 cm。

A. 顶边缘 B. 顶边缘 C. 中间 D. 1/3处2.某轮首、中、尾吃水分别为6.45m、6.60m、6.50m，且存在拱垂，则其平均吃水为______m。

A. 6.60B. 6.57C. 6.48D. 3.253.船舶资料中列出的满载排水量通常是指：A. 冬季排水量B. 夏季排水量C. 热带排水量D. 淡水排水量4.对一般干散货船而言，表征其重量性能的指标有：A. 净吨B. 总吨C. 舱容系数D. 载重量5.固体散货船载货能力中的容量能力是指：A. 舱柜容积B. 液舱舱容C. 散装舱容D. 包装舱容6.舱容系数较大的船舶，装运密度______的货物易达到满舱满载。

A. 大B. 小C. 中等D. 无法确定7.船舶静水力曲线图是表示船舶正浮状态下的______与吃水的关系曲线的总称。

Ⅰ船型系数；Ⅱ静稳性要素；Ⅲ浮性要素、初稳性要素A. Ⅰ、ⅡB. Ⅱ、ⅢC. Ⅰ、ⅢD. Ⅰ、Ⅱ、Ⅲ8.船舶少量装载时，可用_______来计算吃水改变量。

A. 厘米纵倾力矩B. 厘米吃水吨数C. 初稳性高度D. 静稳性力臂9.某轮排水量为19000t，TPC为24t/cm，到港时船舶平均吃水减小0.2m，则到港时排水量_______吨。

A. 18520tB. 16600tC. 15200tD. 11800t10.一般用______表示船舶储备浮力的大小。

A. 稳性B. 纵向强度C. 干舷D. 吃水差11.木材船的夏季木材载重线_______其载运非木材货所使用的夏季载重线。

A. 稍低于B. 稍高于C. 等于D. 不能确定12.航行于热带季节区域的货船，允许使用_______带载重线。

中华人民共和国海事局2008年第6期海船船员适任统考试题（总第46期）科目：船舶结构与设备试卷代号：961适用对象：无限航区3000总吨及以上船舶船长／大副，近洋、沿海航区500总吨及以上船舶船长／大副（本试卷卷面总分100分，及格分为70分，考试时间100分钟）答题说明：本试卷试题均为单项选择题，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。

每题1分，共100分。

1.一般强度船体结构用钢适用于：I、厚度不超过l00mm的钢板和型钢；II、厚度不超过l00mm 的宽扁钢；III,厚度不超过50mm的型钢和棒材；IV、厚度不超过50mm的钢板A. I ～IIIB. I、IIIC. I、IID. II、III2.船舶的轴、舵杆等形状简单的构件较多采用：A.钢板B.型钢C.铸钢D.锻钢3.槽钢在图纸上的标注符号是：A. “L”B.“工”C.“⊥”D.“[ ”4.船体结构中的焊缝形式有：I、对接焊缝；II、角焊缝；III .塞焊缝：IV、铆焊缝A. I、II、IIIB. II、III、IVC. I、III、IVD. I、II、III, IV5.按规范规定，在船体结构中＿＿＿＿＿＿一般是指板的扶强构件。

A.一般构件B．普通构件 C.次要构件 D.主要构件6.图中的船体结构属于：A.横骨架式；B.纵骨架式；C.混合骨架式；D.特殊骨架式7.船图上的基本图线有粗细之分，一般细线只有粗线的：A. 1/3B. 2/3C. 1/4D. 1/28.船壳外板“右舷C列第6块板”的编号为：A. SC6B. CS6C. C6SD. S6C9.船舶总布置图中，一般放在最下方的图是：A.舱底平面图B.各层平台及甲板平面图C.右舷侧视图D.船首尾俯视图10.水平式内底边板的特点有：I、施工方便；II、舱内平坦且强度好；III,可提高船舶的抗沉性：IV、散装货船广泛采用A. I、IIB. II、IIIC. III、IVD. I～III11.舷侧结构由＿组成。

中华人民共和国海事局2008年第6期海船船员适任统考试题（总第46期）科目：船舶结构与设备试卷代号：961适用对象：无限航区3000总吨及以上船舶船长／大副，近洋、沿海航区500总吨及以上船舶船长／大副（本试卷卷面总分100分，及格分为70分，考试时间100分钟）答题说明：本试卷试题均为单项选择题，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。

每题1分，共100分。

1.一般强度船体结构用钢适用于：I、厚度不超过l00mm的钢板和型钢；II、厚度不超过l00mm 的宽扁钢；III,厚度不超过50mm的型钢和棒材；IV、厚度不超过50mm的钢板A. I ～IIIB. I、IIIC. I、IID. II、III2.船舶的轴、舵杆等形状简单的构件较多采用：A.钢板B.型钢C.铸钢D.锻钢3.槽钢在图纸上的标注符号是：A. “L”B.“工”C.“⊥”D.“[ ”4.船体结构中的焊缝形式有：I、对接焊缝；II、角焊缝；III .塞焊缝：IV、铆焊缝A. I、II、IIIB. II、III、IVC. I、III、IVD. I、II、III, IV5.按规范规定，在船体结构中＿＿＿＿＿＿一般是指板的扶强构件。

A.一般构件B．普通构件 C.次要构件 D.主要构件6.图中的船体结构属于：A.横骨架式；B.纵骨架式；C.混合骨架式；D.特殊骨架式7.船图上的基本图线有粗细之分，一般细线只有粗线的：A. 1/3B. 2/3C. 1/4D. 1/28.船壳外板“右舷C列第6块板”的编号为：A. SC6B. CS6C. C6SD. S6C9.船舶总布置图中，一般放在最下方的图是：A.舱底平面图B.各层平台及甲板平面图C.右舷侧视图D.船首尾俯视图10.水平式内底边板的特点有：I、施工方便；II、舱内平坦且强度好；III,可提高船舶的抗沉性：IV、散装货船广泛采用A. I、IIB. II、IIIC. III、IVD. I～III11.舷侧结构由＿组成。