海船船员模拟冲刺试题集5篇.docx

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1、海船船员模拟冲刺试题集5篇海船船员模拟冲刺试题集5篇 第1篇按照我国船舶进出口检查办法,下列哪些船舶申请电讯检疫将得不到批准()?、来自疫区;、载有检疫传染病人;、船员患普通感冒;、船舶卫生状况不符合要求A.、B.、C.、D.、参考答案:D 当船舶在密度为1000kg/m3淡水中的吃水为10m,驶入密度为1018kg/m3的海水后,其吃水约为_。A.10.18mB.10mC.9.18mD.9.82m正确答案:D 除客船以外的其他船舶,在正常气候下,救生艇、筏和浮具降落水面的时间不超过:A.10分钟B.15分钟C.30分钟正确答案:A 如果单锚泊的船舶偏荡运动消失,船舶单舷受风,而风并未减弱,此

2、时最可能的情况是:A.风向逆时针变化B.风向顺时针变化C.船舶已走锚D.风向不再变化正确答案:C 增压柴油机按速度特性工作, 当转速升高时, 其过量空气系数的变化是_。A.增加B.降低C.不变D.无规律正确答案:A海船船员模拟冲刺试题集5篇 第2篇 救生与消防时的个人任务可从_查到。A.船舶证书B.船员名册C.应变部署表正确答案:C What is NOT required on an uninspected towing vessel?A.Certificate of DocumentationB.Certificate of InspectionC.Operators Merchant M

3、arine licenseD.FCC Station License正确答案:B 属于叶轮式泵的是()。A.齿轮泵B.螺杆泵C.离心泵D.喷射泵正确答案:C 消防靴和手套由橡胶或其他电绝缘材料制成。此题为判断题(对,错)。正确答案:动力系统包括下列管路系统()。A、燃油、滑油系统B、海、淡水冷却系统C、蒸汽、压缩空气系统D、A+B+C参考答案:D海船船员模拟冲刺试题集5篇 第3篇中国船舶报告系统的组成不包括()。A.中国海上搜救中心B.船舶报告管理中心C.海上遇险联络点D.船舶报告接收站参考答案:C 白棕绳受潮后,强度比原绳降低约:()A.1/5B.1/4C.1/3D.1/2正确答案:B 有关

4、航海日志的记载要求下列哪项正确?I、大副负责具体管理航海日志;II、应使用不褐色的蓝色或黑色墨水笔记载;III、船长应及时审阅航海日志记载,并逐页签署;IV、左、右页应依时间对应顺序记录A.IIVB.I、II、IVC.IIIVD.I、III、IV正确答案:C 材料:The field current supply in older machines comes from a lower voltage direct current generator or exciter on the same shaft as the alternator. Modern machines however

5、are either statically excited or of the high-speed brush-less type. The exciter is required to operate to counter the effects of power factor for a given load. The power factor is a measure of the phase difference between voltage and current and is expressed as the cosine of the phase angle. With a

6、purely resistance load the voltage and the current are in phase, giving a power factor of one. The power consumed is therefore the product of voltage and current. Inductive or capacitive loads, combined with resistance loads, produce lagging or leading power factors which have a value less than one.

7、The power consumed is therefore the product of current, voltage and power factor. The alternating current generator supplying a load has a voltage drop resulting from the load. When the load has a lagging power factor this voltage drop is considerable. Therefore the exciter, in maintaining the alter

8、nator voltage, must vary with load current and also the power factor. The speed change of the prime mover must also be taken into account.问题: The word “machines” in the passage refers to _.A.the direct current generatorB.the alternating current generatorC.the exciterD.the prime moverWhich of the fol

9、lowing statements is true according to the passage ?A.With a purely resistance load, the power factor is zeroB.Inductive loads combined with resistance loads produces leading power factorsC.Capacitive loads combined with resistance loads produces lagging power factorsD.With a purely resistance load,

10、 the phase angle is zeroWhen the load has a lagging power factor this voltage drop is considerable. This sentence means that _.A.with a purely resistance load, the voltage drops too muchB.there is a considerable voltage drop in the capacitive load combined with resistance loadC.when the load is the

11、capacitive load combined with resistance load, the voltage drops to zeroD.when the load is the inductive load combined with resistance load, the voltage drop is fairly largeThe exciter must vary with: load current the power factor, speed change of the prime mover.A.B.C.D.请帮忙给出每个问题的正确答案和分析,谢谢!问题 1 答案

12、解析:B问题 2 答案解析:D问题 3 答案解析:D问题 4 答案解析:DMARPOL7378附则于()年5月19日生效,国际航行的船舶应持有主管机关签发的()证书。A、2022/IAPPB、2022/IAPPC、2022/COFD、2022/NLS参考答案:B海船船员模拟冲刺试题集5篇 第4篇十字头式柴油机某缸冷却水压力表指针波动时,表明()有穿透性裂纹。A、气缸盖B、活塞C、气缸套D、气缸盖或气缸套参考答案:D 尾部吃水过浅_。、不易发生空泡现象、容易发生空泡现象、推进效率增加、推进效率下降、舵效增加、舵效下降A.+B.+C.+D.+正确答案:B 对严重冻伤的患者,可直接放入40度的温水中

13、复温。此题为判断题(对,错)。正确答案: 船舶甲板起火时,对于已经关闭的油舱口,应用(),以防油类挥发而使火势扩大。A.泡沫覆盖B.喷雾水冷却C.A或B正确答案:C 刚性救助艇两侧设有钢性扶手以便乘员上下艇,还设有耐油泡沫护舷,外有两层紧固橡胶以便更换。此题为判断题(对,错)。正确答案:海船船员模拟冲刺试题集5篇 第5篇船舶主、副机运转期间,_能减少气缸套磨损,防止产生异常磨损。.加强燃油和燃烧的管理;.保证气缸良好的润滑条件;.保持缸套冷却水温度;.保证缸套合适的配合间隙;.活塞运动装置具有良好的对中性。A.+B.+C.+D.+参考答案:D当热带气旋中心附近最大风力达到12级及12级以上时,发布的警报为()。A、热带风暴警报B、强热带风暴警报C、台风警报D、大风警报参考答案:C在船上吊缸检查气缸套时,不必_。A.测量缸套直径B.观察缸套表面C.疏通注油孔及注油器D.清理气缸套冷却水腔水垢参考答案:D 每艘救助艇的正常属具应包括_。急救药包1套;可浮水瓢1只;罗经柜1具;系有长度不小于30m浮索的可浮救助环1个;哨笛或等效的音响号具1只A.B.C.正确答案:B关于海水系统海底阀说法不正确的是()A、至少有两个B、位于左右两舷C、有高位和您祝D、只能用止回阀答案:D

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