【判断题】
软件保护导致车顶隔离开关锁闭，复位车顶隔离开关时必须降弓。
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相关试题
【判断题】
牵引变流器由防滑速度传感器、2个4象限斩波器（4QC），1个制动斩波器1个脉冲宽度调制逆变器（PWMI）组成。
【判断题】
CRH380B型动车组电压互感器的作用为：一个电压互感器有次边绕组每个绕组分别与一个受电弓连接，用于测量和监视电网接触线的电压，互感器位于受电弓与主断路器之间。
【判断题】
在牵引系统启动前的预充电的作用：主要是为连接电容Cd以及谐振电路中的Csk电容充电，防止线路闭合瞬时电流过大引起误动作或致使PWMI以及辅助供电系统工作滞后。
【判断题】
CRH380B动车组转向架防侧滚装置由可调连杆与抗侧滚扭杆组成。
【判断题】
接地轴端分为保护接地与工作接地两种，其中保护接地分布在TC02、TC07车，工作接地分布在FC04、BC05车。
【判断题】
CRH380B型动车组辅助变流器的功能是把牵引变流器中间直流环节的直流电转换为3相440V/60Hz交流电，为车载设备提供中压电源。
【判断题】
CRH380B动力转向架的L04与L15阀分布于枕梁同侧，拖车转向架的高度阀分布于转向架枕梁两侧。
【判断题】
CRH380B转向架辅助装置主要由天线、撒砂、排障器、传感器、感应接收器装置、接地装置等组成。
【判断题】
普通轴端盖M8螺栓紧固力矩为16Nm，接地轴端盖M8螺栓紧固力矩为23Nm。
【判断题】
更换防滑速度传感器时应注意安装时先预紧，然后用插尺测量传感器感应面与测速齿轮间的间隙，保证间隙在0.4到1.4mm之间。
【判断题】
空调系统制冷工况和制暖工况时出风量分配方式为蝶形阀控制。
【判断题】
通风系统主要包括混合箱和新风隔栅、送风管道系统、废排系统、回风系统四个部分。
【判断题】
空调装置由空气冷却系统、通风系统、自动控制系统系统构成。
【判断题】
各车控制面板空调旋钮开关都有关，半冷，全冷，自动，半暖，全暖，位置。
【判断题】
PIS系统总线包括音频总线、视频总线、数据总线、UIC总线。
【判断题】
充电机的三种运行状态是正常运行，AC345V47HZ；外部供电，AC380V50HZ；停放整备状态AC440V60HZ。
【判断题】
电器柜内控制客室空调系统的空开是61-F16,61-F30。
【判断题】
旅客信息系统从功能上可分为信息显示子系统、通告与通讯子系统、影音娱乐子系统三个子系统。
【判断题】
TC02车有3个烟感探头，电器柜一个，卫生间、PIS柜各一个。
【判断题】
CRH380B动车组车窗更换成双框结构，可快速拆换，但接口一致，可互换。
【判断题】
CRH380B动车组设置双手柄模式，左手操作制动手柄、右手操作牵引手柄。司机左手常握制动手柄，以便紧急情况下，可以快速反应，实施列车制动。
【判断题】
CHR380B蓄电池分布在4、5车下，单节电压等级1.2V，蓄电池组电压等级110V。
【判断题】
CRH380B动车组外端门与CRH3C结构一致，可互换。
【判断题】
CRH380B车顶隔离开关分布在2、7车，在正常情况下处在闭合状态，当发生故障时隔离开关将车顶电缆隔离。
【填空题】
1. ___是站段一体化管理的牵头单位，在技术科{部}设一体化管理办公室。
【填空题】
2. CRH380B 动车组制冷和采暖流量的转换是通过___来实现。
【填空题】
3. CRH380B/BL 动车组一个动车有___个减振器。
【填空题】
4. 电器柜内控制客室空调系统的空开是 61-___和 61-___ 。
【填空题】
5. CRH380B 型动车组紧急通风装置性能：当动车组发生断电，空调系统不能正常运行时自动启动，用来维持___，最长可维持___分钟。
【填空题】
6. 牵引变流器由 2 个 ___{4QC}、___、1 个制动斩波器、1 个脉冲宽度调制逆变器{PWMI}组成。
【填空题】
7. BCU电源故障 MMI显示故障代码为___， 故 障 描 述 ： ___。
【填空题】
8. CRH380B 动车组在机械师室增加受电弓状态监控屏；制动系统 ___/___的控制。
【填空题】
9. 塞拉门门页行程的 2 个限位开关分别是___ %，___ %。
【填空题】
10. 动车组实行总公司、铁路局、______段三级专业管理。
【填空题】
11. 载客运营动车组上严禁采用______的方式进行故障排查。
【填空题】
动车{客车}段要认真贯彻落实总公司、铁路局“强基达标、提质增效”工作要求，不断完善作业指导书，落实标准化作业，积极开展达标创建工作，___组织一次平推检查。
【填空题】
12. 警惕操作装置包括警惕脚踏、___ 、司机控制器。
【填空题】
13. 动车组出所联检由___牵头组织，一体化作业相关专业人员参加，按分工确认设备技术状态是否满足上线运营标准。
【填空题】
14. 旅客列车空调失效超过___分钟不能恢复且列车不能维持运行时，列车长应及时与司机、随车机械师___沟通。
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You can take ______ seat you like. ___
A. no matter what
B. no matter which
C. what
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【单选题】
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A. having thought
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----- _______is your English teacher？ ----- The one in red. ___
A. who
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I know Jonathan quite well and never doubt_____ he can do a good job of it___.
A. whether
B. that
C. when
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I'm afraid it ______ tomorrow, but who knows?___
A. may have rained
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He has spent ____money on his new house.___
A. a large number of
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This is the hotel __________ I like to stay.___
A. in which
B. at which
C. to which
D. at that
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Would you mind keeping a（n）__________on the house for us while we are away？___
A. eye
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He suggested the sports meet be _______because of the bad weather. ___
A. put away
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If the weather is __________ suitable, we will play the football match on Tuesday. ___
A. by means of
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_____________is one of the five working languages at U.N. , which _______ are very proud of.___
A. The Chinese, the Chinese
B. Chinese language, Chinese
C. Chinese, the Chinese
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【单选题】
The war lasted so long that people were tired of it. Everyday there was large crowds of demonstrators _____against the war.___
A. protecting
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Tom is so talkative. I’m sure you'll soon get tired ________ him.___
A. of
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C. at
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【单选题】
He ________ driving me home, even though I told him I lived nearby.___
A. insisted on
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D. insisted in
【单选题】
We came finally ______ the conclusion that she has been telling lies all the time.___
A. of
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I am not used to speaking ________ public.___
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I didn’t know what to do, but then an idea suddenly ________to me.___
A. appeared
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C. occurred
D. emerged
【单选题】
Measles （麻疹） ________ a long time to get over.___
A. spend
B. spends
C. take
D. takes
【单选题】
A pair of spectacles ________ what I need at the moment.___
A. is
B. are
C. has
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【单选题】
I fell and hurt myself while I ________ basketball yesterday.___
A. was playing
B. am playing
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Don't forget _________ the window before leaving the room.___
A. to have closed
B. to close
C. having closed
D. closing
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Twenty people were______ wounded in the air crash.___
A. quickly
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C. bitterly
D. seriously
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The top of the Great Wall is ________ for five horses to go side by side.___
A. wide
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Nancy is considered to be _________ the other students in her class.___
A. less intelligent
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【单选题】
She is not only my classmate __________ also my good friend.___
A. or
B. but
C. and
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【单选题】
I would like to do the job ________ you don't force me to study.___
A. in case
B. although
C. though
D. as long as
【单选题】
__________ 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
B. him cross
C. him crossed
D. he crossing
【单选题】
The workers are busy __________ models for the exhibition.___
A. to make
B. with making
C. being making
D. making
【单选题】
The higher the temperature, __________ the liquid evaporates.___
A. the faster
B. the more fast
C. the slower
D. the more slower
【单选题】
Australia is one of the few countries ___________ people drive on the left of the road.___
A. which
B. that
C. where
D. on which
【单选题】
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
【单选题】
Once environmental damage ___________, it takes many years for the system to recover.___
A. is to do
B. does
C. had done
D. is done
【单选题】
We worked hard and completed the task ________.___
A. in the time
B. on the time
C. ahead of time
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【单选题】
I didn't expect you to turn __________ at the meeting yesterday.___
A. up
B. to
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【单选题】
Mike is better than Peter _________ swimming.___
【单选题】
Eggs, though rich in nourishments, have ___________ of fat.___
A. a large number
B. the large number
C. a large amount
D. the large amount
【单选题】
His salary as a driver is much higher than _____________.___
A. a porter
B. is a porter
C. as a porter
D. that of a porter
