2022年上半年青海省电气工程师弱电工程施工流程和规范：施工流程考试试卷.pdf

2017年上半年青海省电气工程师弱电工程施工流程和规范：施工流程考试试卷一、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、终端短路的无损传输线的长度为波长的下列哪项数值时，其入端阻抗的的绝对值不等于特性阻抗A(A)1/2 B(B)1/8 C(C)3/8 D(D)5/8 2、有一级负荷的用电单位，难以从地区电力网取得两个电源而有可能从邻近单位取得第二电源时，_从该单位取得第二电源。A必须B宜C应D不应3、相线对地标称电压为220V 的 TN 系统配电线路的接地故障保护，其切断故障回路的时间应符合配电线路或仅供给固定式电气设备用电的末端线路，不大于 _的规定。A0.4s B4s C0.5s D5s 4、锅炉房动力用电、水泵用电和照明用电应分别计量。单台锅炉容量超过_的大型锅炉房，应设置计算机监控系统。A5.0MW B6.0MW C7.0MW D8.0MW 5、在潮湿和易触及带电体场所的照明电源电压不得大于_。A24V B36V C48V D110V 6、有人值班的变电所，_装设能重复动作、延时自动解除，或手动解除音响的中央事故信号和预告信号装置。A不应B可C必须D宜7、当变压器负荷率不大于 _。时，其功率损耗可以概略计算PT=0.01 Sjs(kW)；QT0.05 Sjs(kvar)。Sjs 为变压器计算负荷。A70%B75%C85%D90%8、已知变压器额定容量、额定电压及变压器实验数据，当变压器在额定电压下通过功率为 S 时，变压器的有功功率损耗的计算公式为（）。(式中 s 为三相功率，u 为线电压)A.（A）B.（B）C.（C）D.（D）9、选择 335kV 导体的相对湿度，应采用当地_。A历史最高湿度B年最高湿度平均值C湿度最高月份最大值D湿度最高月份的平均相对湿度10、设计室、计算机房等场所采用照明光源的相关色温宜_。A3300K B3300K4000K C3300K5300K D5300K 11、采用_是间接接触防护的措施。A全距离B屏护C不接地的局部等电位连接D绝缘12、_应设置火灾应急广播。A控制中心报警系统B区域报警系统C集中报警系统D各种报警系统13、在 TT 系统中，当 SPD装在剩余电流保护器电源侧，选择220/380V 三相系统中的电涌保护器时，其最大持续运行电压Uc 不应小于 _。(注：U0 为低压系统中相线对中性线的标称电压)A1.1U0 B1.15U0 C1.5U0 D1.55U0 14、函数 F=AB+BC+AC 与函数（）。A相等 B互为反函数 C互为对偶式 文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4D答案都不正确15、控制电缆 _采用铜芯。A不应B可C应D宜16、人与带电体、带电体与带电体、带电体与地面(水面)、带电体与其他设施之间需保持的最小距离叫 _，又称为安全间距。A安全净距B最小距离C间距D故障间距17、某双绕组变压器的额定容量为15000kVA，短路电压百分值为10.5，额定变比为 220/38.5kV，则归算到高压侧的等值电抗为（）Ω。AA BB CC DD 18、对污染严重、工艺设备落后、_和生态破坏严重的电磁辐射建设项目与设备，禁止建设或购买。A能耗高B资源浪费C大气层污染严重D危害健康19、空气中架设的二线输电线，导线半径为a，二导线轴线间的距离为d，并且da，已知二导线间施加的电压为U0，则电位较高的导线单位长度所带的电量为()。A.A B.B C.C D.D 20、总额定容量不超过1260kVA、单台额定容量不超过 _的可燃油油浸电力变压器以及充有可燃油的高压电容器和多油开关等，可贴邻民用建筑(除观众厅、教室等人员密集的房间和病房外)布置，但必须采用防火墙隔开。A400kVA B500kVA C630kVA D800kVA 21、进行负荷计算时，单相负荷应均衡分配到三相上，当单相负荷的总容量超过计算范围内三相对称负荷总容量的_，应将单相负荷换算为等效三相负荷，再与三相负荷相加。A5%B10%C15%文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4D20%22、当采用需要系数法计算变电所高压侧负荷时_。A应加上变压器低压侧的母线损耗B应加上变压器的功率损耗C不应加上变压器的功率损耗，但需乘以同时系数D宜加上变压器的功率损耗23、在大型厂房或非三班生产的车间中，应安装_变压器供电。A防火专用B照明专用C经济负载大D经济负载小24、25、10(6)kV 变电所室内高压电容器装置宜设置在单独房间内，当电容器组容量较小时，可设置在高压配电室内，但与高压配电装置的距离不应小于_。A1m B1.5m C2m D2.5m 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、1.0 级及 2.0 级的电能表处电压降不得大于电压互感器额定二次电压的_。A0.25%B0.5%C1.0%D1.5%2、电压范围变电所电气设备与操作过电压的绝缘配合中，电气设备内绝缘相对地额定操作冲击耐压与避雷器操作过电压保护水平间的配合系数的取值不应_115倍。A大于B小于C等于D小于或等于3、配电装置中相邻带电部分不是同一额定电压等级时，应按_确定其电气安全净距。A较高等级的额定电压B较高等级的额定电压净距与较低等级的额定电压净距之和的1/2 C较低等级的额定电压D较高等级额定电压净距与较低等级额定电压净距之差的1/2 4、组合电路如题 3-23 图所示，该电路的逻辑功能是（）。A数据选择器B译码器C数据分配器D编码器文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z45、当采用需要系数法计算负荷时，短时或周期工作制电动机应统一换算到负载持续率为 _下的功率。A90%B75%C100%D25%6、卫星通信系统，通常是山_组成。A通信卫星、地球站、监控管理系统B通信卫星、地球站、跟踪遥测及指令系统C地球站、跟踪遥测、监控管理系统D通信卫星、地球站、跟踪遥测及指令系统和监控管理系统等四大部分7、因建设工程勘察设计事故及相关业务造成的经济损失，_应承担赔偿责任并可依法向因技术过错造成事故和损失的注册工程师追偿。A注册工程师B聘用单位和注册工程师C聘用单位的相关部门D聘用单位8、变电所电气装置保护接地的接地电阻不得大于_。A4 B5 C6 D8 9、室内变电所的每台油量为100kg 及以上的三相变压器，_变压室内。A应设在单独的B可两台设在同一C宜设在单独的D应两台设在同一10、11、微分方程 cosydx+（1+e-x）sinydy=0 满足初始条件 yx=0=的特解是：（）.Acosy=（1+ex）Bcosy=（1+ex）Ccosy=4（1+ex）Dcos2y=（1+ex）12、突然断电比过负荷造成的损失更大的线路，其过负荷保护应_。A作用于信号而不作用于切断电路B作用于切断电路而不作用于信号C同时作用于信号和切断电路D延时 0.5s切断短路13、某旅游旅馆，建筑面积为16000m2。拟装设配电变压器2 台。单位面积容量按 80VA/m2 估算，配电变压器负荷率为80%，选用 2 台相同容量的变压器，每台变压器的容量应是 _kVA。A1000 B800 C630 文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4D500 14、火灾自动报警系统的传输线路和_以下供电的控制线路，应采用电压等级不低于交流 _的铜芯绝缘导线或铜芯电缆。采用交流 _的供电和控制线路应采用电压等级不低于交流 _的铜芯绝缘导线或铜芯电缆。A50V,250V,220V/380V,500V B500V,250V,220V/380V,500V C50V,250V,220V/110V,500V D50V,50V,220V/380V,500V 15、三角形单匝回路与无限长直导线位于同一平面上，如题1-81 图所示。它们之间的互感为（）。AA BB CC DD 16、某放大器要求其输出电流几乎不随负载电阻的变化而变化，且信号源的内阻很大，应选用下列哪种负反馈A(A)电压串联B(B)电压并联C(C)电流串联D(D)电流并联17、一般情况下，变电所操作的直流经常负荷电源由_提供。A交流电源B充电器C不间断电源D蓄电池18、狭窄可导电场所当采用安全特低电压时，采用遮栏或外护物防护，其外壳防护等级不应低于 _。AIPX BIP2X CIP3X DIP4X 19、反击过电压的幅值取决于（）。A.雷电流幅值B.耐雷水平C.地网冲击电阻D.引流点的位置E.设备充电回路的时间常数20、安全距离应保证在各种可能的_工作电压或过电压的作用下，不发生闪络放电，且保证工作人员对电气设备巡视、操作、维护和检修时的绝对安全。A最大B正常C运行D有效21、大型民用建筑中高压配电系统根据具体情况也可采用_。文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4A环形B树干式C链式D双干线22、新建的耗能过高的工业项目的名录和具体实施办法，由国务院管理节能工作的部门会同国务院有关部门制定。A禁止B不应C不可D不得23、下列电梯可按二级负荷供电的是_。A一般乘客电梯B重要的医用电梯C一般自动扶梯D重要的乘客电梯24、探测器至空调送风口边的水平距离不应小于_，并宜接近回风口安装。探测器至多孔送风顶棚孔口的水平距离不应小于_。A1.5m,1.5m B1.5m,2.5m C1.5m,0.5m D2.5m,0.5m 25、当采用利用系数法计算负荷时，短时或周期工作制电动机应统一换算到负载持续率为 _下的功率。A90%B75%C100%D25%文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 ZA8N4V3O9Z4文档编码:CB7J4J4H10O7 HM5I5F8P8C3 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