【单选题】
作业组成员要服从___的指挥、调动，遵章守纪，对不安全和有疑问的命令要果断及时地提出，坚持安全作业。
A. 工班长
B. 安全员
C. 施工负责人
D. 作业组中最高领导人
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相关试题
【单选题】
接触网检修作业车（W201）、接触网辅助作业车（W202）、接触网检修平台车（P201）、接触网综合检测车（W203）要___检修（维保）1次并填写《接触网作业车、辅助作业车（平台作业车）》（详见附件9）、《接触网检测车检修记录》（详见附件10）。
A. 半个月
B. 每月、
C. 每2个月
D. 每季度
【单选题】
刚柔过渡处两支刚性悬挂中间悬挂点处接触线应等高，高差不大于2mm；转换悬挂点非工作支不得低于工作支，可比工作支高出___mm，受电弓在双向通过时应平滑过渡，无撞击和拉弧现象；在刚柔过渡交界点处，汇流排对接触线不应产生下压或上抬。
A. 3～6
B. 3～5、
C. 4～6
D. 5～8
【单选题】
柔性接触线下锚绝缘子边缘距受电弓包络线不应小于___mm，刚性悬挂带电体距柔性悬挂下锚底座、下锚支接地体等不应小于150mm。
A. 100
B. 150、
C. 200
D. 250
【单选题】
刚柔过渡装置连接线夹的螺栓紧固力矩为___N•m；防雨罩安装稳固，对露天汇流排覆盖完全。
【单选题】
刚柔过渡装置两支悬挂点的拉出值为±100mm,间距为200mm，允许误差±___mm。
【单选题】
埋入杆件安装位置正确，允许误差±100mm；螺纹外露不少于___mm，镀锌防腐良好；化学锚栓螺孔填充密实，化学药剂填充处无渗水漏水现象。
【单选题】
硅橡胶绝缘横撑金属连接件与芯棒连接应可靠，密封应良好；硅橡胶伞裙完整无破损；C型汇流排定位线夹的U型螺栓距接地体、接地线不得小于___mm。
A. 100
B. 150、
C. 200
D. 250
【单选题】
支持装置带电体距混凝土及接地体的绝缘距离，静态值不小于___mm。
A. 100
B. 150、
C. 200
D. 250
【单选题】
槽钢底座、悬吊槽钢、绝缘横撑、悬垂吊柱、T型头螺栓等构件无变形、镀锌层完整；T型头螺栓应留有不少于___mm的调节余量（净空限制地段除外），所有外露螺栓长度应满足电气绝缘距离，静态值不小于150mm。
【单选题】
T型头螺栓的头部长边应基本垂直于安装槽道，T型头螺杆距邻近绝缘子裙边不小于___mm。
A. 50
B. 60、
C. 100
D. 150
【单选题】
汇流排定位绝缘子安装端正，表面光滑、清洁，无裂纹、破损、缺釉、斑点等缺陷，瓷釉剥落总面积不大于___mm2。
A. 150
B. 250、
C. 300
D. 500
【单选题】
汇流排终端到相邻悬挂点的距离为___mm，允许误差：+200mm，-100mm。
A. 1500
B. 1600、
C. 1800
D. 2500
【单选题】
接触线在锚段末端汇流排外余长为100～150mm，沿汇流排终端方向顺延，水平夹角一般不小于为___°；接触线端头对接地体的距离不小于150mm；困难情况不小于115mm。
【单选题】
中心锚结处于汇流排中心线的正上方，基座中心偏离汇流排中心不大于___mm。
【单选题】
中心锚结绝缘子表面应无损伤，接地端至带电体、汇流排距离一般情况下应不小于150mm；困难情况不应小于___mm。中心锚结线夹处接触线的工作面应平顺无负弛度。
A. 60
B. 100、
C. 115
D. 120
【单选题】
中心锚结绝缘子及拉杆受力均衡，与汇流排的夹角一般不大于___°；中心锚结线夹与汇流排固定牢靠，调整螺栓处于可调状态。
【单选题】
悬挂点处接触线拉出值范围为±___mm，误差不应大于±10mm。关键悬挂点的拉出值与设计值一致，其它一般悬挂点的拉出值仅作调整参考，但必须保证汇流排平滑过渡，且拉出值的绝对值不得大于300mm。
A. 200
B. 250、
C. 300
D. 350
【单选题】
汇流排横截面中轴线应垂直于所在处的轨道平面，偏斜不应大于___°。
【单选题】
锚段关节两支接触线在关节中间悬挂点处应等高，其高差不大于___mm；转换悬挂点非工作支比工作支高出3～6mm，受电弓在双向通过时应平滑过渡，无撞击和拉弧现象。
【单选题】
分段绝缘器中心偏离线路中心线不应大于___mm。
【单选题】
分段绝缘器紧固件连接牢固可靠，滑板连接螺栓紧固力矩为___N•m。
【单选题】
分段绝缘器中心距相邻悬挂定位点的距离为___mm，允许误差±500mm。
A. 500
B. 800
C. 1000
D. 1500
【单选题】
测量机构箱内电磁离合器电阻，其阻值为___Ω，误差为±5Ω。
【单选题】
隔离开关触头带电部分至顶部建筑物距离，不应小于___mm；至隧道壁不应小于150mm。
A. 250
B. 300
C. 500
D. 1000
【单选题】
隔离开关底座和操作机构底座应呈水平状态，安装牢固；靠近线路侧至线路中心线不得小于___mm。操作机构底座安装高度距地面1000~1200mm为宜。操作机构箱应密封良好，门锁和钥匙完好齐全。
A. 1500
B. 1800
C. 1900
D. 2000
【单选题】
电连接线的安装位置允许偏差为±200mm，距相邻绝缘子最小距离不小于___mm,在任何情况下均应满足带电距离要求。
A. 50
B. 60
C. 100
D. 150
【单选题】
150mm2电缆绝缘层剥开长度为___mm；400mm2电缆绝缘层剥开长度为90mm；电缆导体不得损伤。
A. 50
B. 60、
C. 70
D. 100
【单选题】
150mm2电缆卡子间距不大于___mm；400mm2电缆卡子间距不大于1000mm。
A. 50 0
B. 600、
C. 700
D. 800
【单选题】
电连接电缆弯曲半径150mm2不小于___mm， 400mm2不小于800mm。
A. 250 0
B. 300、
C. 500
D. 800
【单选题】
电连接线的安装位置允许偏差为±___mm，距相邻绝缘子最小距离不小于60mm,在任何情况下均应满足带电距离要求。
A. 100 0
B. 200、
C. 250
D. 300
【单选题】
架空地线的弛度应符合安装曲线，其允许偏差为+5%至-___%。
【单选题】
架空地线不得有___股以上的断股，同一锚段内，断股补强数和接头数均不超过4个。
【单选题】
架空地线下锚处调整螺栓长度处于可调节范围内，并有不少于___mm的调节余量。
【单选题】
接地线及其固定螺栓、电缆卡子等对接触网带电体的距离不小于150mm，对受电弓的瞬时距离不小于___mm，且不得侵入行车限界。
A. 50
B. 100、
C. 150
D. 250
【单选题】
运行中的避雷器___预防性试验。
A. 每年一次
B. 每年在雷雨季节前需做一次、
C. 每两年一次
D. 视情况做
【单选题】
放电间隙___mm，放电铜棒应无严重烧伤变形。
A. 2-3
B. 2.5-3、
C. 2.5-3.5
D. 3-6
【单选题】
简单悬挂的吊索回头不小于___mm，吊索压板紧固良好。
【单选题】
柔性接触网定位器及定位管坡度为___。
A. 1/10-1/6
B. 1/10-1/5
C. 1/6-1/5
D. 1/10-1/7
【单选题】
2号线共有___处接触网刚柔过渡装置。
【单选题】
2号线共有___座牵引变电所（含车辆段停车场）。
推荐试题
【单选题】
Q4: How will the new high-speed train affect the man?___
A. He can take the train to the old part of the city .
B. He can save a lot of money when he takes the train .
C. He can save 20 minutes to go to work with the train .
D. He can take the train to the airport instead of driving .
【单选题】
Q1: How much time on average do Americans spend on their way to work?___
A. About an hour .
B. More than an hour .
C. About half an hour .
D. More than one and a half hours .
【单选题】
Q2: What is the present situation about Americans’ commuting to work?___
A. More and more Americans spend over an hour getting to work .
B. Over 10 percent of Americans spend less than an hour getting to work .
C. Only New York people spend more than 90 minutes getting to work .
D. Over 10 percent of Americans spend more than 90 minutes getting to work .
【单选题】
Q3: Why does Steven choose to have an extreme commute?___
A. Because gas prices are not high .
B. Because the commute is not tiring .
C. Because he can attend a better school .
D. Because he can have his favorite lifestyle .
【单选题】
Q4: Which of the following is the disadvantage of long commutes?___
A. Traffic jams .
B. Expensive housing .
C. Poorer life quality .
D. A tiring and boring trip .
【单选题】
Q1: What did Katy like about Jason’s last Halloween party?___
A. She liked playing an interesting game .
B. She enjoyed seeing many of her old friends .
C. She enjoyed wearing her Halloween costume .
D. She liked the decorations in Jason's front yard .
【单选题】
Q2: What is the actual reason that Katy doesn’t want to attend Jason’s party?___
A. None of her friends likes Jason .
B. None of Jason's guests is young .
C. She wants to go to Linda's party ..
D. She went to Jason's party last year .
【单选题】
Q3: What is special about Linda’s party?___
A. The party will last four hours .
B. Six people will attend the party .
C. They will have huge bags of candy .
D. They will play a new game called "GuessWho ".
【单选题】
Q4: What will Katy do to solve her problem?___
A. Go to Jason's party .
B. Go to Linda's party .
C. Attend both Jason's and Linda's parties .
D. Celebrate Halloween with her parents .
【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 .
