【单选题】
在修建靠近接触网的房屋、建筑及设备时,严禁借助支柱搭脚手架或在铁塔支柱上上下。 ( ) ___
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相关试题
【单选题】
在距接触网带电部分不到2米的建筑物上作业时,接触网可以不停电。( ) ___
【单选题】
在带电的接触网下,不准在敝车、平车、罐车、客车等车辆上进行任何作业 。( ) ___
【单选题】
在带电的接触网下,可用竹杆及金属长在大物件等测量接触网与房屋、建筑设备的距离。( ) ___
【单选题】
在电气化区段施工使用发电机、空压机、搅拌机等机电设备时,距离接触网设备5米范围内要有良好的接地装置。( ) ___
【单选题】
发生接触网断线接地故障时,在切断电源前,任何人与接地点的距离,室外不得小于10米。( ) ___
【单选题】
在带电接触网下,只要降下受电弓,就可以用水冲洗列车顶部。 ( ) ___
【单选题】
安全电压指正确人体不会引起生命危险的电压。( ) ___
【单选题】
当发生跨步电压达到40V以上时,人体将有触电的危险。( ) ___
【单选题】
因接触网支柱不带电,所以作业人员可以在支柱旁休息。() ___
【单选题】
乘务(作业)人员发现接触网上挂有线头或导线折断下垂搭在车辆上时,应立即处理。() ___
【单选题】
为保证人身安全,任何人携带的物件与接触网设备的带电部分需保持2米以上的距离。() ___
【单选题】
汽车通过电气化铁路平交道口时,货物的装载的高度(从地面算起)不得超过3米。() ___
【单选题】
手执金属棒、导线、木杆、梯子、旗杆等工具或物件通过接触网时,可以高举通过。() ___
【单选题】
电气化区段,在接触网未停电、未接地前,任何人禁止到各种车辆的车顶上进行作业。() ___
【单选题】
用水和灭火器浇灭距离接触网带电部分不足8米的燃着物时,接触网必须停电。() ___
【单选题】
因工作需要,任何人都可以操作隔离开关。() ___
【单选题】
在高压触电现场发现有人触电时,应立即用手将触电人员拖离触电现场。() ___
【单选题】
在修建靠近接触网的房屋、建筑及设备时,严禁借助支柱搭脚手架或在铁塔支柱上上下下。() ___
【单选题】
隔离开关支撑绝缘子应清洁,无破损和放电痕迹,釉面剥落面积不大于300mm。() ___
【单选题】
开关引线与隔离开关连接牢固,接触良好,距接地部份不小于400mm,拉力不大于60kg。() ___
【单选题】
允许带负荷进行隔离开关的倒闸作业。() ___
【单选题】
遇有危及人身或设备安全的紧急情况,可不经调度批准,先行断开有条件断开的隔离开关,并立即报告调度,但再闭合时必须有调度的命令。() ___
【单选题】
当发现隔离开关及其传动装置状态不良时,值班员应立即要求电力调度派人检修,在修好之前允许偶尔操作。() ___
【单选题】
倒闸开关不能带负荷进行分合闸。() ___
【单选题】
隔离开关按使用情况分类:分为经常操作的隔离开关和不经常使用的隔离开关。() ___
【单选题】
防护用品在每次使用前后,用干布擦净,使用前要进行简略漏气试验。如发现有裂损等异状时,要及时要求电力调度派人来检查处理。() ___
【单选题】
各隔离开关的传动机构必须锁住,钥匙存放固定地点,专人保管并有标鉴注明开关号。() ___
【单选题】
当发现隔离开关及其传动装置状态不良时,值班员应立即要求电力调度派人检修,在修好之前不得进行操作,并严禁擅自攀登支柱自行修理。() ___
【单选题】
遇有危及人身或设备安全的紧急情况,可不经调度批准,先行断开有条件断开的隔离开关。() ___
【单选题】
相邻支柱上的隔离开关及每一根支柱上的各台隔离开关,其钥匙可以互相通用。() ___
【单选题】
动车组一级修作业程序不用进行登顶作业。() ___
【单选题】
单组动车组一架受电弓隔离时,严禁进入自动洗车作业区。() ___
【多选题】
铁路常见的事故类别有( )类。 ___
A. 物体打击
B. 车辆伤害
C. 机械伤害
D. 起重伤害,触电,高处坠落
【多选题】
在线路上作业,随时注意( )的机车车辆,严禁( )接打手机,或者( )或者做其他( )的与岗位工作无关的事情。 ___
A. 邻线来往
B. 接打手机
C. 发,看信息
D. 有碍望,视听和分散精力
【多选题】
天窗(或封锁)时间以外,禁止任何人员进入高速铁路运行区段防护栅栏,桥面或隧道内。必须进入时,须得到( ),办理登记销点手续,从( )进出,并严格执行工作门管理制度。 ___
A. 调度命令准许
B. 上级领导准许
C. 防护栅栏空漏处
D. 工作门
【多选题】
严禁在( )和站台坐,立,闲谈,休息,避雨或乘凉。 ___
A. 枕木头
B. 轨道心
C. 车底下
D. 车端部
【多选题】
两人以上扛抬物品时应( ),做好呼唤应答。 ___
【多选题】
以下哪些是危险有害因素。( ) ___
A. 可对人造成伤亡或影响人的健康甚至导致疾病的因素
B. 能对人造成伤亡或对物造成突发性损失的因素
C. 能影响人的健康因素
D. 导致疾病或对物造成慢性损害的因素
【多选题】
机动车出入厂门,车间,库房限速( )。厂内行驶限速( ), ___
A. 5km/h
B. 10km/h
C. 20km/h
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Twenty people were___ wounded in the air crash.
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The top of the Great Wall is ___ for five horses to go side by side.
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It's _____ that he was wrong.
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There ____ a book and some magazines on the desk.
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She is not only my classmate _____ also my good friend.
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He asked the waiter ___ the bill.
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_____ you are leaving tomorrow, we can have dinner together tonight.
A. Since
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I would like to do the job ___ you don't force me to study.
A. in case
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C. though
D. as long as
【单选题】
The reason I did not go abroad was ___ a job in my home town.
A. because
B. due to
C. that I got
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_____ she survived the accident is miracle.
A. What
B. That
C. As
D. Which
【单选题】
I often see ____ the road on his way home.
A. he cross
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【单选题】
His mother _______ alone since his father died.
A. lived
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【单选题】
The workers are busy _____ models for the exhibition.
A. to make
B. with making
C. being making
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【单选题】
It was well known that Thomas Edison _______ the electric lamp.
A. discovered
B. invented
C. found
D. developed
【单选题】
She wonders ____ will happen to her private life in the future.
A. that
B. it
C. this
D. what
【单选题】
The higher the temperature, _____ the liquid evaporates.
A. the faster
B. the more fast
C. the slower
D. the more slower
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Australia is one of the few countries ______ people drive on the left of the road.
A. which
B. that
C. where
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Sunday is the day ____ people usually don't go to work.
A. when
B. which
C. in which
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____ you know, David has been well lately.
A. Which
B. As
C. What
D. When
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The harder you study, _____ you will learn.
A. much
B. many
C. the more
D. much more
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They got there an hour _____ than the others.
A. early
B. much early
C. more early
D. earlier
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The grey building is the place where the workers live, and the white building is the place where the spare parts ____ .
A. are producing
B. are produced
C. produced
D. being produced
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Once environmental damage ______, it takes many years for the system to recover.
A. is to do
B. does
C. had done
D. is done
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We worked hard and completed the task ___.
A. in the time
B. on the time
C. ahead of time
D. before time
【单选题】
I didn't expect you to turn _____ at the meeting yesterday.
A. up
B. to
C. out
D. over
【单选题】
I like the teacher _______ classes are very interesting and creative.
A. which
B. who
C. whose
D. what
【单选题】
When Lily came home at 5 p. m. yesterday, her mother ______ dinner in the kitchen.
A. cooked
B. was cooking
C. cooks
D. has cooked
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I don’t know the park, but it's _____ to be quite beautiful.
A. said
B. told
C. spoken
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Mike is better than Peter ____. swimming.
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The young lady coming over to us ______ our English teacher; the way she walks tells us that!
A. must be
B. can be
C. would be
D. could be
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Eggs, though rich in nourishments, have ______ of fat.
A. a large number
B. the large number
C. a large amount
D. the large amount