【多选题】
电缆的路径选择,应避免电缆遭受()危害。
A. A.机械性外力
B. B.过热
C. C.腐蚀
D. D.接地短路
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答案
ABC
解析
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相关试题
【多选题】
电缆保护层中常用的防蚁剂有:()等。
A. A.伏化剂
B. B.艾氏剂
C. C.石灰粉
D. D.氯丹
【多选题】
()的绝缘线,无承力线的集束线,严禁在档内做承力连接。
A. A.不同金属
B. B.不同规格
C. C.不同绞向
D. D.不同厂家
【多选题】
普通拉线用在()等处用来平衡固定不平衡荷载,与线路方向对正。
A. A.终端杆
B. B.分支杆
C. C.耐张杆
D. D.直线杆
【多选题】
低压接户线的()应从同一基电杆引下。
A. A.相线
B. B.中性线
C. C.保护线
D. D.弱电线
【多选题】
下列哪些情况应对安全工器具进行试验:()。
A. A.规程要求进行试验的
B. B.新购置的
C. C.自行研制的
D. D.国家明令淘汰的
【多选题】
测量首末端电压的作用:()。
A. A.通过测量低压台区的首端电压与末端电压能计算出该低压线路的线损等问题
B. B.通过测量低压台区的首端电压与末端电压能得知供电电压质量是否在允许偏差范围内
C. C.通过测量低压台区的首端电压与末端电压能监测电网是否正常运行,是否有泄漏电压,危及电网安全
D. D.计算线路电阻
【多选题】
进行电力电缆绝缘电阻摇测前应()。
A. A.对运行中的电缆要先停电,然后对停电电缆验电
B. B.对已退出运行的电缆放电、挂接地线
C. C.拆除电缆两端与设备或线路的接线,拆除接地线,对侧围好围栏并派人看守
D. D.电缆两端围好围栏并派人看守
【多选题】
配电线路巡视的目的是()。
A. A.掌握线路及设备运行情况
B. B.发现并消除缺陷,预防事故发生
C. C.提供详实的线路设备检修内容
D. D.检查巡视质量
【多选题】
对电力系统的基本要求是()。
A. A.保证对用户的供电可靠性和电能质量
B. B.提高电力系统运行的经济性
C. C.减少对环境的不良影响
D. D.电网建设越超前越好
【多选题】
三相交流电与单相交流电相比的优点有()。
A. A.三相电机可制造的容量比较大,运行特性好
B. B.三相电动机转动平稳、结构简单、维护方便、噪声小
C. C.远距离输送电能比较经济,降低电能损耗,节约导线
D. D.远距离输送电能经济性差
【多选题】
起重机具应()。
A. A.妥善保管
B. B.列册登记
C. C.定期检查试验
D. D.存于室内
【多选题】
在力学中,把力的()称为力的三要素。
A. A.大小
B. B.方向
C. C.作用点
D. D.重力
【多选题】
属于单动作起重机械的有()、()和()等。
A. A.千斤顶
B. B.起重葫芦
C. C.卷扬机
D. D.塔吊
【多选题】
《南方电网公司低压集抄工程验收规范》,用户档案信息验收的要求包括( )。
A. A.核对每个供电台区的集中器、采集器在营销系统、计量自动化系统的档案信息与现场是否对应一致。
B. B.检查每个供电台区用户档案、电能表档案在营销系统、计量自动化系统的信息与现场是否对应一致。
C. C.检查每个供电台区的集中器存储的样本电能表信息与现场是否对应一致。
D. D.检查每个供电台区的集中器存储的样本电能表信息与营销系统是否对应一致。
【多选题】
关于推进低压集抄自主运维的指导意见《营销系统计量自动化终端故障处理功能规范》第4.1.4规定,故障信息受理收集的信息主要包括:( )等。
A. A.终端在线情况
B. B.数据采集情况
C. C.异常报警信息
D. D.终端档案信息
【多选题】
关于推进低压集抄自主运维的指导意见《低压集抄技术方案及其典型故障排除方法》3.1低压集抄系统简介。本地通信信道根据采用通讯载体的不同,可分为( )
A. A.485总线通信技术
B. B.电力线载波通信技术
C. C.无线通信技术
D. D.调度数据网通信技术
【多选题】
"根据《智能电表与低压集抄建设工作指引五(数据质量)》,关于低压集抄抄表数据核对的工作要求,下列说法正确的有:( )。
A. A.核实营销系统与计量自动化系统的台区清单是否一致
B. B.现场表码和计量自动化系统的表码核对,台区负责人要在一周内完成核对
C. C.十天内自动抄表率至少有一天达到100%,且有连续三天不低于98%。
D. D.七天内自动抄表率至少有一天达到100%,且有连续二天不低于98%。
【多选题】
《智能电表与低压集抄建设工作指引》三(施工质量及安全)。关于施工质量管理中的风险管控措施,下列说法正确的是( )
A. A.表计安装前,应认真核对图纸和工作单是否一致完备
B. B.入户线的管槽安装应有防进水措施;
C. C.现场具备接地条件的,RS-485通信线屏蔽层要单点接地
D. D.电表更换后,10日内必须完成营销系统用户档案归档
【多选题】
《居民用户家用电器损坏处理办法》第十二条:属于使用寿命为12年的电机类家用电器有()。
A. A.电冰箱
B. B.空调
C. C.洗衣机
D. D.取暖器
【多选题】
《南方电网有限责任公司用电检查管理办法》第3.1条:重要客户根据供电可靠性的要求以及中断供电危害程度,分为()、()和()。
A. A.特级
B. B.一级
C. C.二级
D. D.三级
【多选题】
供电企业对查获的窃电者应按()处理。
A. A.应予制止并可当场中止供电
B. B.窃电者应按所窃电量补交电费
C. C.承担补交电费三倍的违约使用电费
D. D.承担补交电费六倍的违约使用电费
【多选题】
下列属于防止窃电的组织措施的是()。
A. A.抄表人员的管辖范围实现定期或不定期轮换
B. B.严格执行抄表复核制度,每月抄表后及时复核 "
C. C.完善客户档案,如TV和TA变比、电表编号、用电地址等应核对无误,尤其是新增客户装表接电阶段要做好交接工作和及时建档
D. D.规范低压线路安装架设和电能表的安装
【多选题】
现场检查客户电能计量装置,包括()。
A. A.检查电能表和终端
B. B.检查接线
C. C.检查互感器
D. D.检查开关设备
【多选题】
用电检查人员在侦查窃电时使用的“经济分析法”是指()。
A. A.线损率分析法
B. B.用户单位产品耗电量分析法
C. C.用户功率因数分析法
D. D.对照容量分析法
【多选题】
《供电监管办法》第二十条规定:供电企业应当按照国家有关规定,遵循()的原则,与用户、趸购转售电单位签订供用电合同,并按照合同约定供电。
A. A.平等自愿
B. B. 协商一致
C. C. 诚实信用
D. D. 客户至上
【多选题】
电力生产与电网运行应当遵循()、()、()的原则。(中华人民共和国电力法)
A. A. 安全
B. B. 优质
C. C. 经济
D. D. 稳定
【多选题】
《供电监管办法》第二十二条规定:供电企业应当方便用户查询下列信息()。
A. A. 用电报装信息和办理进度
B. B.用电投诉处理情况
C. C. 其他用电信息
D. D.供电企业政务信息
【多选题】
关于采用全载波组网方式的集抄系统,以下说法正确的有()。
A. A.载波集中器可以通过有线网络、无线网络等方式与主站通讯。
B. B.载波集中器只能采集同一变压器台区内的载波电能表的数据。
C. C.同一载波集中器管理的电能表不能有重复的地址码。
D. D.载波集中器通过接入台区内的任意一相线一零线即可采集所有的数据。
【多选题】
下列关于集中器安装位置选择要求的说法,正确的有()。
A. A.一般在台区的中心位置。
B. B.有三相四线供电电源。
C. C.考虑CDMA或GPRS通讯的可靠性。
D. D.尽可能安装在供电线路末端。
【多选题】
采用GPRS通信方式的计量自动化终端终端,现场调试上线需要设置的参数主要包括()。
A. A.主站IP地址
B. B.端口号
C. C.APN
D. D.测量点参数
【多选题】
居民集中抄表本地数据采集组网模式有( )。
A. A.集中器+载波表
B. B.集中器+采集器+RS-485表
C. C.集中器+微功率无线表
D. D.主站+GPRS表
【多选题】
以下哪些参数是终端与表计通讯有关联的()?
A. A.电表地址
B. B.波特率
C. C.通信规约
D. D.电表型号
【多选题】
在计量自动化系统中,实时召测某块电表数据失败,下列原因分析正确的有( )。
A. A.终端内未设置该电表通信参数或参数设置错误。
B. B.终端与该电表的通信信道故障。
C. C.该电表故障或未通电。
D. D.主站没有对应设置采集任务。
【多选题】
新系统退补流程主要有( )。
A. A.冲正退补
B. B.电量退补
C. C.电费退补
D. D.电价退补
【多选题】
根据现行居民电价政策,下列选项中,应执行居民合表户电价的有( )。
A. A.学生生活用电
B. B.教堂、寺庙生活用电
C. C.福利院生活用电
D. D.实行“一户一表”的住宅小区居民用户
【多选题】
按最新销售电价分类说明,以下属于大工业电价适用范围的有( )。(根据桂价格【2014】122号文)
A. A.军事动力用电
B. B.化肥生产用电
C. C.城乡污水处理厂生产用电
D. D.商场空调用电
【多选题】
根据现行居民电价政策,实施居民阶梯电价的目的意义包括以下哪几项。
A. A.有利于理顺电价机制
B. B.有利于建立公平负担的用电机制
C. C.有利于促进节能减排
D. D.有利于改善员工福利
【多选题】
以下用户,执行非居民电价的有( )。(根据桂价格【2014】122号文)
A. A.公路照明用电
B. B.收费站用电
C. C.公共厕所用电
D. D.商场用电
【多选题】
根据《广西壮族自治区物价局关于降低一般工商业电价有关事项的通知》(桂价格〔2018〕43号)的规定,基本电费可以按()计算。
A. A.变压器容量
B. B.最大需量合同值
C. C.实际最大需量
D. D.单台设备的最大容量
【多选题】
依据南网公司《业扩报装及配套项目管理办法》(2017版),供电方案应依据()以及综合现场勘查结果等因素确定。
A. A.国家有关政策和规定
B. B.电网运行和规划建设情况
C. C.客户的用电需求
D. D.客户履约能力
推荐试题
【单选题】
Q1: What is special about this year’s Black Friday shopping?___
A. Some stores offered bigger holiday discounts .
B. Some stores provided more choices of nightlife.
C. Some stores made efforts to attract young people .
D. Some stores opened much earlier than they used  to .
【单选题】
Q2: Why did some stores open at midnight on Thanksgiving night?___
A. To attract young customers .
B. To beat other stores for sale.
C. To let people sleep late the next day .
D. To keep people stay up for the night .
【单选题】
Q3: How many Black Friday shoppers were reported to go to the shops at midnight this year?___
A. 24 percent .
B. 37 percent .
C. 9.5 percent .
D. 23.5 percent .
【单选题】
Q4: What can we learn about the 15-year-old Jenny?___
A. She and her cousins went back home at midnight .
B. She liked the traditional 4 a.m. Black Friday.
C. She preferred midnight shopping to early  morning shopping .
D. She and her cousins got up very early to buy  discounted items .
【单选题】
Q1: Why did the woman decide to do a triathlon?___
A. Because she did it in college .
B. Because she wanted to be tough .
C. Because her sister did it and liked it .
D. Because her sister said it was good for her .
【单选题】
Q2: When did the man first do a triathlon?___
A. Last year .
B. In college .
C. Last week .
D. In high school .
【单选题】
Q3: How does the man feel about running?___
A. Boring.
B. Scaring .
C. Exciting .
D. Interesting .
【单选题】
Q4: Why doesn’t the woman like swimming in the triathlon?___
A. Because she fears that a big fish might eat  her .
B. Because she fears that she would get lost in  lakes .
C. Because she doesn't want to scare away  small fishes .
D. Because she doesn't like swimming with  many people .
【单选题】
Q1: What is the ratio of positive to negative emotions that can make a person happier?___
A. 1:3.
B. 3 :1.
C. 1 :10 .
D. 10 :1.
【单选题】
Q2: What is the most exciting finding about increasing positive emotions?___
A. It improves relationships .
B. It leads to greater success .
C. It helps develop creativity .
D. It contributes to good health .
【单选题】
Q3: What does the speaker say about negative feelings?___
A. People should turn every negative feeling  around .
B. Negative feelings can sometimes have  positive effects .
C. Negative feelings often cause people to  make mistakes .
D. People should never show negative feelings  in public places .
【单选题】
Q4: What is the main idea of the passage?___
A. People should learn to manage their  emotions .
B. People should be patient with their  negative feelings .
C. People should learn to analyze causes of  unhappiness .
D. People should identify as many positive  feelings as possible .
【单选题】
Q1: What are the man and woman talking about?___
A. Whether nature is magical and kind .
B. Whether nature is powerful and full of risks .
C. Whether Christopher was well prepared for the trip .
D. Whether Christopher's trip to Alaska was  worthwhile .
【单选题】
Q2: What can we learn about Christopher?___
A. He made a film about his trip to Alaska .
B. He wrote a story about his trip to Alaska .
C. He died while having an adventure in Alaska .
D. He learned how powerful and risky Alaska was .
【单选题】
Q3: What does the woman think about Christopher taking the trip to Alaska?___
A. He was too foolish .
B. He was really romantic .
C. He had a very kind heart .
D. He had a spirit for trying things .
【单选题】
Q4: Which of the following is NOT mentioned as something that would have saved Christopher’s life?___
A. A gun to hunt .
B. The map of the area .
C. Emergency food supplies .
D.
E. mergency communication equipment .
【单选题】
Q1: What speed can an avalanche reach within five seconds of taking off?___
A. At 8 miles an hour .
B. At 18 miles an hour .
C. At 80 miles an hour .
D. At 88 miles an hour .
【单选题】
Q2: According to the passage, under what circumstances may an avalanche occur?___
A. There are too many layers of snow on the  .
B. There is a layer of snow covering an entire  area .
C. The top layer of snow slides off the layer  below it .
D. The layer of snow below the surface  becomes unstable .
【单选题】
Q3: What are skiers advised to do to avoid being caught in an avalanche?___
A. Ski only in the official ski areas .
B. Look for solid snow to walk on .
C. Look out for each other while skiing .
D. Learn to control themselves in an  avalanche .
【单选题】
Q4: Why does the ski patrol use explosives?___
A. To dig holes in the snow .
B. To close the area for skiing .
C. To make an avalanche move on purpose .
D. To' check how different layers are holding  up .
【单选题】
Q1:What is conversation mainly about?___
A. The woman's happy college life the  man's doubt .
B. The woman's spending habits and the  man's concerns .
C. The man's reminding the woman of the  exam this Thursday .
D. The man's support for the woman over the  past 15 years .
【单选题】
Q2:What did the woman do last night?___
A. She bought a new leather coat .
B. She studied very hard for an exam .
C. She treated all her friends to dinner .
D. She went to a concert with her friends .
【单选题】
Q3:Where did the woman get the money?___
A. She just received her student loan .
B. She saved some money for herself .
C. She borrowed the money from her friends .
D. She asked her mom to send her the money .
【单选题】
Q4:What is the man?___
A. A teacher of biology .
B. An undergraduate student .
C. A freshman in biology class .
D. A graduate teaching assistant .
【单选题】
Q1: What is this passage mainly about?___
A. How businesses can compete with each  other .
B. How small businesses operate during  holidays .
C. How small businesses manage holiday  workers .
D. How can earn more money  during holidays .
【单选题】
Q2: According to Rubin, what can small companies do to thank holiday workers?___
A. Have talks with their families .
B. Give them good extra benefits .
C. Offer them expensive holiday tokens .
D. Show appreciation to them face to face .
【单选题】
Q3: What can small business owners do to help holiday workers get into the holiday spirit?___
A. Entertain them with big meals .
B. Let them enjoy some holiday games .
C. Give them handmade thank-you cards .
D. Send their families some holiday gift cards .
【单选题】
Q4: Who are supposed to benefit most from this passage?___
A. Workers who have to work during  holidays .
B. Employees who intend to earn extra  money .
C. Big companies that usually close on  holidays .
D. Small businesses that try to be more  competitive .
【单选题】
In the first two paragraphs of the passage the writer tries to tell us that___
A. he had lived in Washington D.C. for twenty years
B. he was very imaginative when he was a child
C. he had fond memories of his old neighborhood
D. )he had come from a very poor neighborhood
【单选题】
The writer ,as a child ,was very fond of playing in the basement because ___
A. it was bright and alive
B. it contained a movie house and a space station
C. it was ideal for playing hide-and-seek
D. it was surrounded by trees and flowers
【单选题】
How did the writer feel when he visited his old neighborhood in Washington D.C. ?___
A. Greatly surprised .
B. Very regretful .
C. Quite excited .
D. Very sad .
【单选题】
On his visit to his hometown ,the writer found the old apartment building___
A. see medunfit to live in
B. had been repaired
C. could hardly be recognized
D. looked dirty and smelt horrible
【单选题】
" Youcan never go home again "inthe last sentence of this passage means that___
A. one should never revisit his hometown after many years of absence
B. one will never find his hometown the same as it was in his childhood memory
C. avisit to one's hometown will bring back one's fond memories of home
D. avisit to one's hometown will bring back many sad memorie
【单选题】
We learn from the passage that Tracy died___
A. on December 8,1992
B. of brain damage
C. 24 hours after he fell off the roof of a car
D. in a car crash
【单选题】
Tracy's parents decided to donate Tracy's organs because___
A. Tracy told them to do so just before he died
B. they wanted to save others the pain of seeing a dear one die
C. David's life could continue in a meaningful way
D. they knew David was suffering from a hopeless liver disease
【单选题】
The meeting between the writer's family and Tracy's parents was arranged because___
A. the writer and her husband wished to express their thanks to Tracy's parents 
B. the local organ bank wanted to see how both families felt about the donation 
C. Tracy's parents wanted to see someone whose life had been saved by the donation
D. the two families were linked by the most bittersweet ties imaginable
【单选题】
The writer and her husband learned how Tracy died___
A. from his parents
B. from the organ bank
C. from the hospital
D. from the doctor who performed the operation
【单选题】
The meeting between the two families helped to ease the Marshes'suffering because___
A. they saw that David looked very much like their son
B. they saw that David had regained health with Tracy's liver
C. they now had someone to share their memories of Tracy
D. they now knew for sure they had done the right thing
【单选题】
The writer's first marriage was unsuccessful because___
A. her husband often woke her up at midnight
B. her husband kept criticizing her
C. she was so unattractive
D. she had a self-esteem problem
【单选题】
When the writer asked for a divorce ,her husband___
A. told her that she would never find one who loved her as he did
B. delayed two years before giving her a reply
C. accused her of having an affair
D. said that she was unattractive and not worth loving