广西2016年电机装配工：变电二次安装工模拟试题一、单项选择题（共25 题，每题 2 分，每题的备选项中，只有 1 个事最符合题意）1、加工__机座时，先加工完机座止口和铁心挡内圆。
A．分片B．整体C．铸铝D．铸铜2、下列绕组中需要使用转子端部绑扎设备的是__。
A．异步电动机的定子绕组B．同步发电机的电枢绕组C．直流电动机的电枢绕组D．笼型电动机的转子绕组3、异步电动机的缺点是__，调速性能较差。
A．结构简单B．具有较好的工作特征性C．具有较高的效率D．功率因数低4、数字式仪表具有很高的灵敏度和__，具有显示清晰直观、功能齐全、性能稳定、过载能力强等优点。
A．准确度B．稳定度C．经济性D．分辨率高5、相同时间内热效应与交流电等效的直流值称为这一交流电的__。
A．有效值B．最大值C．瞬时值D．平均值6、绕组绝缘结构设计的内容包括材料的选择，绝缘厚度的确定，__、固定方式、工艺方案的确定和制定试验规范等。
A．防晕措施B．电压大小C．减压速度D．增压速度7、斜二测轴测图中，当坐标平面XOZ平行于轴测投影面时，轴测轴__的轴间角为90°。
A．O1X1和O1Z1B．O1X1和O1Y1C．O1Y1和O1Z1D．O1X1和O8、在软线圈几何形状和尺寸中，主要是线圈形式、__、总长、直线长度及端部长度对嵌线质量有影响。
A．齿距B．节距C．跨距D．短距9、两个电阻串联的电路中，总电压为60V，R1=6Ω,，R2=12Ω，则电阻R1上的电压为__。
A．20VB．40VC．60VD．6V10、成批生产电机达到标准抽试期限时，应进行型式试验，以考核制造工艺的稳定性和产品质量的__，综合考察企业各部门的工作质量。
A．严密性B．先进行C．可靠性D．一致性11、锯削的基本方法包括推锯时锯弓的运动方式和__。
A．锯弓的握法B．锯条的安装方法C．起锯的方法D．工件的固定方法12、在化学反应过程中，一般的有机物反应__；有机物很多不是电解质，不导电。
A．速度较快B．速度较慢C．速度适中D．不彻底13、编制工艺规程时应具备的原始资料之一为__。
A．产品的工艺准备B．产品的技术标准C．原材料的准备情况D．产品的市场前景14、三视图中，俯视图和左视图应__。
A．长对正B．高平齐C．宽相等D．宽不等15、职业是个人在社会中所从事的作为主要生活来源的劳动，其构成要素有：谋生、__、促进个性健康发展。
A．为个人发展B．承担社会义务C．对社会和国家作出贡献D．为家庭服务16、将三相负载的一端__接在三相电源的端线上，另一端都接在中线上的接法称为三相负载的星形联结。
A．交替B．交叉C．集中D．分别17、直流电动机发生环火的原因有设计原因，换向器维护不良，换向恶化，__系统故障等。
A．电气控制B．冷却C．调速D．保护18、做绕组对地交流耐压试验时，如果电压表的指示、__，电流表的指示迅速增加，则说明对地绝缘被击穿。
A．不变B．降为零C．升高D．左右摆动19、现场文明生产的主要内容之一是__文明。
A．工具B．动作C．储运D．工时20、带传动结构简单，维护方便，价格便宜，但使用寿命短、效率低。
__21、The destruction of our natural resources and contamination of our food supply continue to occur, largely because of the extreme difficulty in affixing (把……固定) legal responsibility on those who continue to treat our environment with reckless abandon (放任). Attempts to prevent pollution by legislation, economic incentives and friendly persuasion have been met by lawsuits, personal and industrial denial and long delays---not only in accepting responsibility, but more importantly, in doing something about it.It seems that only when government decides it can afford tax incentives or production sacrifices is there any initiative for change. Where is industry’ s and our recognition that protecting mankind’ s great treasure is the single most important responsibility If ever there will be time for environmental health professionals to come to the frontlines and provide leadership to solve environmental problems, that time is now.We are being asked, and, in fact, the public is demanding that we take positive action. It is our responsibility as professionals in environmental health to make the difference. Yes, the ecologists, the environmental activists and the conservationists serve to communicate, stimulate thinking and promote behavioral change. However, it is those of us who are paid to make the decisions to develop, improve and enforce environmental standards, I submit, who must lead the charge.We must recognize that environmental health issues do not stop at city limits, county lines, state or even federal boundaries. We can no longer afford to be tunnel-visioned in our approach. Wemust visualize issues from every perspective to make the objective decisions. We must express our views clearly to prevent media distortion and public confusion.I believe we have a three-part mission for the present. First, we must continue to press for improvements in the quality of life that people can make for themselves. Second, we must investigate and understand the link between environment and health. Third, we must be able to communicate technical information in a form that citizens can understand. If we can accomplish these three goals in this decade, maybe we can finally stop environmental degradation, and not merely hold it back. We will then be able to spend pollution dollars truly on prevention rather than on bandages. Which of the following, according to the author, should play the leading role in the solution of environmental problems ()A．Legislation and government intervention.B．The industry's understanding and support.C．The efforts of environmental health professionals.D．The cooperation of ecologists, environmental activists and conservationists. 22、为了保证电机定子和转子问气隙均匀，在加工过程中应合理选择工艺基准和加工程序，以达到技术要求标准所需要的__度，严格控制好单件加工精度，以保证装配质量。
A．准确B．同轴C．精确D．倾斜23、绕组绝缘结构设计的内容不包括__。
A．防晕措施B．材料的选择C．绝缘厚度的确定D．增压速度24、凸极式同步电机转子磁极由磁极铁心．励磁绕组、阻尼绕组和__组成。
A．阻尼环B．磁轭C．集电环D．平衡块25、为了解决由于集肤效应使发电机线棒铜损增大的影响,在制做线棒时一般采用__。
A．较少根数的大截面导线制做B．多根小截面并且相互绝缘的铜线绕制C．多根小截面并且相互绝缘的铜导线进行换位制作的措施D．钢芯铝绞线二、多项选择题（共25 题，每题 2 分，每题的备选项中，有 2 个或 2 个以上符合题意，至少有1 个错项。
错选，本题不得分；少选，所选的每个选项得0.5 分）1、电机总装后，一般都要进行__检查，检查电机振动、响声以及轴承、电刷装置的运行情况是否正常。
