热门试题:
[判断题]直流换流站阀厅内的试验,地面加压人员与阀体层作业人员应通过对讲机保持联系,防止高处作业人员未撤离阀体时误加压。()
A.正确
B.错误
[简答题]某电气安装工程项目,业主与某电力工程公司签订了工程项目总承包合同,该工程项目的变压器采用自耦式变压器(容量为800kV·A),电机采用三相异步电动机。
该工程项目的设计单位对变压器的采购编制了采购计划,经业主批准后,由项目经理进行采购。工程监理单位负责对变电压检验的组织工作。变压器运抵施工现场后,进行了开箱验收,经验收合格后,按吊装、吊芯检查、就位、试验、干燥的程序和要求进行安装。变压器安装完毕后,进行了绝缘油的击穿电压试验和交流耐压试验,绝缘油在试验时,温度一直保持在40℃左右,且在清洗注油后即开始加电压试验;变压器安装完成后静止5h开始进行交流耐压试验。
三相异步电动机在检查过程中经电气试验发现质量可疑。
[问题]1.变压器按照绕组数目可分为哪几类该变压器是否应吊芯检查说明理由。
2.简述三相异步电动机的工作原理。
3.判断该工程项目的变压器的采购、检验、安装、试验等过程中有何不妥之处,并改正。
4.该工程项目经理部在设备采购阶段的主要任务有哪些
5.机电设备工程项目设备检验的工作内容包括哪些
6.在三相异步电动机经电气试验发现质量可疑时,应该如何进行进一步检查
[多选题]超声波探伤具有以下( )等优点。
A.对平面型缺陷灵敏度高
B.探伤周期短
C.直观性强
D.对缺陷尺寸判断准确
[判断题]动车组发生路外事故时,遇有人员伤亡时,随车机械师要组织乘警等现场有关铁路工作人员将伤亡人员移出线路、做好标记,有能力的应当对伤员进行紧急施救。
A.正确
B.错误
[单选题]2.6.1 天然气管道运行时,管道运行压力不应大于管道( )压力。
A.试验压力
B.设计压力
C.最高允许工作压力
D.公称压力
[判断题]《建设工程安全生产管理条例》规定,建设行政主管部门或其他有关部门可以将施工 现场的监督检査委托给建设工程安全监督机构具体实施。
A.正确
B.错误
[填空题]主板产生故障的原因有多种,下列故障中,属于人为故障的是( )。
[单选题]在混合桥上,当明桥面长度大于 50m 时,在明桥面和有砟桥面上各自采用自身的净距和允许误差,并在明桥面上采用( )的斜率完成间距变化的过渡。
A.不大于 1.5%
B.不小于 1.5%
C.不大于 2.5%
D.不小于 2.5%
[判断题] 具有个人信贷业务审批权的副行长其亲属申请的个人贷款,由本级行行长审批。
A.正确
B.错误
[单选题]《安规》规定使用各种镐类、千斤顶起重时,重心要找准,底座安放平稳牢固,镐体垂直,铁与铁接触部要加防滑木垫,其行程不得超过全长的( )。
A.四分之一
B.二分之一
C.四分之三
[单项选择]通常,在评价交通噪声或其他噪声时,一般不用下面哪一项?()
A. L10
B. L20
C. L50
D. L90
[填空题]受电弓直接与接触网接触,将( )从接触网上引入机车,供车内的( )使用。
[单选题]题干:理中汤的药物组成为( )
A.党参、黄芪、白术、白芍
B.党参、干姜、白术、炙甘草
C.党参、黄芪、白术、炙甘草
D.党参、茯苓、白术、炙甘草
E.党参、干姜、茯苓、炙甘草
[单选题]两只额定电压相同的电阻串联接在电路中,则阻值较大的电阻(____)。
A. 发热量较大
B. 发热量较小
C. 没有明显差别
D. 不发热
[单选题]BB008 扎克燃烧器的燃烧空气由鼓风机提供共分为( )。
A.一次风
B.二次风
C.三次风
D.四次风
[单选题]指导病员服药的方法错误的是:
A.服酸类药物,可用饮水管吸入服后漱口
B.发汗药服后多饮水
C.助消化药饭前服
D.服铁剂,忌饮茶
[多项选择]我国区域经济协调发展是指()。
A. 生产总值均等化
B. 推进区域间公共服务均等化
C. 在产业发展上体现各区域的比较优势
D. 在区域间关系上形成优势互补、良性互补的机制
[单选题]地道战、地雷战、麻雀战、破袭战、围困战等武装斗争形式是根据地军民在1941年的( )中创造的,充分发挥了人民战争的威力,有效地打击了敌人。
A. 反“扫荡”斗争
B. 百团大战
C. 枣宜会战
D. 徐州会战
[单选题]测量身高时使用两侧有标尺的量板应注意()。
A.两侧的读数一致
B.只看一侧的读数
C.两侧的读数可以不一致
D.遮盖一侧的读数
[简答题]A Journey by Train: Making Tracks in Europe
We"re taking a train across Europe, from the coast of France all the way to Athens, a trip that has our friends expressing their concern.【F1】
The general feeling seems to be that France and Italy are fine—but the ferry from Italy and the train ride across Greece They call it "traveling rough".
The first leg is easy, from the French port of Calais to Paris. And very comfortable too.【F2】
One of the benefits of a Eurail pass is that you get to travel first class(unless you"re using a youth pass), and for the first time in our lives we ride a train in a "compartment" just as in the movies.
These compartments seat six but today we"re the only occupants so we spread ourselves and our luggage around.
【F3】
Our reward: three days in Paris. We thrill to all the things you"re supposed to thrill to - the Eiffel Tower, the Louver, the Arc de Triomphe. But the really memorable moment in this city is one of those spontaneous human events you can never plan for.
The trick of traveling, I guess, is to be ready to savor whatever happens.
I"m standing on the corner by one of the famous bridges across the River Seine, the Pont Neuf.【F4】
There"s nothing special about it. In a city battered by the roar of endless cars, it"s just another crossroads where two large streams of traffic meet. All roar, more roar and uproar.
(Cars are the great bane of Europe. The inner city streets of most of the old cities were never designed for this sort of traffic—and it shows.)
【F5】
I pause among the surging pedestrians to ease my weary feet. That"s when I hear it. Rising triumphantly above the howl of the traffic, catchy music jingles in the air.
I look around me. It"s coming from... an organ grinder(街头手风琴师).
【F6】
Everyone is hurrying and straining to be somewhere else. But my wiry little organ grinder pours his heart into bringing this corner alive with his music.
Old favorite songs dance gaily above our heads—"Can Can", "Lara"s Theme", "Funiculi-Funieula"—these popular songs form past decades have a European father then an American flavour.
【F7】
Amazingly, a furry cat is fast asleep on top of the music machine ignoring everything around it as if this was some peaceful garden rather than a precarious perch that shakes with every turn of its owner"s arm.
And in a basket by the organ"s pram wheels, a dog dreams peacefully while commuters pour out from an underground station.
My organ grinder has discovered the miracle of perpetual motion. Round and round goes his arm, his body rocking to the effort.【F8】
Casually the transfers the handle from one hand to the other, catching it as it twirls, the: music leaping around him as if it would whisk him and his machine over the rooftops and away past Notre Dame Cathedral(巴黎圣母院)or along the Champs Elysees(香榭丽舍大道)
.
Mind you, he"s not the only one presiding over this noisy corner. Two police officers are here as well, charged with maintaining order. One is male, youthful and confident.【F9】
The other is ... well, a police girl. Her gun is almost as big as she is. Her weapon belt sags on her hips. Maybe in a couple of years she"ll develop into a police-woman, but it"ll take at least that long to grow into her official-issue trousers.
But, petite as she is, this Parisienne carries with her all the authority of the French gendarmerie. The traffic at the come is clogging up—as it does repeatedly during my half-hour. Boldly she blows her whistle and strides out into the surge of traffic.【F10】
Angry cars growl to a halt and sullenly crouch at her feet, snarling their annoyance, fretting to be away. But, cowed by her tiny arm they bite back their frustration and wait till this uniformed child waves them on.【F1】
[单选题]职业道德的养成,要从( )开始。
A.忠于职守.爱岗敬业
B.诚实守信.爱岗敬业
C.立足本职.忠于职守
D.诚实劳动.忠于职守
[单选题]公勤人员应当按照编制配备,不得( )。
A.超编
B.占用
C.满编
D.缺编
[单项选择]钢的成分确定后,其力学性能主要取决于()。
A. 有益元素含量
B. 碳的含量
C. 有害元素含量
D. 钢的金相组织
[单选题]线路上的伤损钢轨应用白铅油做好标记,连续轻伤的标记是( )
A.↑△
B.︱←△→︱
C.↑△△
D.︱←△△→︱
[单选题]3.650. 第1题
消纳方式为全额上网的分布式电源项目,会安装()块电能表。
A.1
B.2
C.3
D.4
[多选题]根据《公安机关人民警察内务条令》,公安民警新入职时应当进行宣誓,举行( )、( )、( )、( )等活动时,可以组织宣誓。
A.荣誉仪式
B.执行重大任务
C.参加重大纪念
D.参加重大庆典
[单选题]
葡萄糖在小肠黏膜上皮处的吸收是通过继发性主动转运实现的,抑制哪种功能活动可以影响葡萄糖的吸收
A.钠泵
B.钙泵
C.质子泵
D.钠钙交换体
E.钠氢交换体
[判断题]220.kV输电线路,在非居民区导线与地面允许的最小距离7.5.m。( )
A.正确
B.错误
[判断题]14. 密贴调整过紧会造成ZD6道岔空动距离小
A.正确
B.错误
[判断题]汽车在行驶中制动时不能按直线方向减速停车称为制动跑偏。
[单选题]起重设备应经( )检验合格,并在特种设备安全监督管理部门登记。
A. 设备管理部门
B.公司质检中心
C.检验检测机构
D.质量监督部门
[单选题] 建筑高度大于()米的但不大于()米的住宅建筑 ( 包括设置商业服务网点的住宅 建筑) 称为二类高层住宅建筑。
A.21 54
B.24 50
C. 21 50
D.27 54
[单项选择]有以下函数:
fun(char *a,char *b)
while((*a!='/0')&&(*b!='/0')&&(*a==*b))
a++; b++;
return(*a-*b);
该函数的功能是( )。
A. 计算a和b所指字符串的长度之差
B. 将b所指字符串复制到a所指字符串中
C. 将b所指字符串链接到a所指字符串后面
D. 比较a和b所指字符串的大小
[单选题]下列不符合免责的债务承担条件的情形是( )
A.须有有效的债务存在
B.被移转的债务具有可转移性
C.须有以债务承担为内容的合同
D.债务承担须通知到达债权人生效
[单项选择]现代科学研究的结果发现,在正常条件下,人的意识本身具有不同的状态。人类意识的第一状态是指()
A. 可控制的意识状态
B. 自动化的意识状态
C. 白日梦状态
D. 睡眠状态
[单项选择]哪项表现对诊断尿路感染最有意义()
A. 畏寒、发热、白细胞增高
B. 尿频、尿急、尿痛
C. 尿培养细菌计数>105/ml
D. 清洁中段尿白细胞>5/HP
E. 尿亚硝酸盐还原试验阳性
[判断题]依据中国南方电网有限责任公司应急管理规定》(Q/CSG2091002-2021)第四十三条规定: 公司系统应急响应等级由高到低依次分为Ⅰ级、Ⅱ级、Ⅲ级和Ⅳ级响应。各级单位应当根据突发事件级别、应急资源匹配程度、社会影响、政府关注程度等因素制定本单位响应启动和结束条件,并在应急预案中予以明确。( )
A.正确
B.错误